Sacred Sun GFMJ Series User manual

C on ten t s
Chapter I: Product Introduction
1. Product Characteristics ...............................................................................................01
2. Main Applications ........................................................................................................02
3. Battery Construction ....................................................................................................02
4. General Specification ..................................................................................................03
5. VRLA Technology ........................................................................................................04
Chapter II: Electrical Characteristics
1. Performance Curve ...................................................................................05
2. Performance Data ........................................................................................................06
Chapter III: Operation and Maintenance
1. Security Instruction ......................................................................................................09
2. Discharge.................................................................................................10
3. Temperature Effect On Battery Capacity .........................................................10
4. Temperature Effect on Battery Service Life.....................................................11
5. Floating Charge And Equalizing Charge .........................................................11
6. Recharge .................................................................................................13
7. Storage..................................................................................14
8. Installation ................................................................................................14
9. Connection ...............................................................................................14
10. Commissioning .........................................................................................15
11. Maintenance .............................................................................................15

Chapter I: Product Introduction
Product Characteristics
Advantages
 Design life: 18 years (25℃);
 Very long life according to EUROBAT Classification
 High discharge performance
 High gas recombination efficiency
 Maximum charge efficiency
 GEL state electrolyte prevents leakage and layering
 Low resistance PVC or PF micro-porous separator ensure Low self-discharge rate
 Easy installation and handling
 Shelf life: 24 months (25℃)
Design features
 Positive plates
 Negative plates
 Separators
 Container and Lid
 Electrolyte
 Terminal posts
 Posts sealing
 Vents
 Plates suspension
 Inter-cell connectors
 Terminal hardware
Product
In tro d u ctio n
01
Flat pasted plate with lead-calcium-tin grid alloy (radial design);
Flat pasted plate with lead-calcium grid alloy (radial design);
Microporous PVC or PF separator;
High-strength ABS (option: available in Flame Retardant UL94 V0 version);
Gel: SiO
2
gelled sulfuric acid;
High-conductivity terminals with threaded inserts;
Double sealing structure;
One way valve with integrated flame arrestor;
Bottom supported;
Insulated rigid copper;
Stainless steel+Cover.

Main Applications
 Telecommunications;
 Emergency power;
 Renewable Energy Storage Systems;
 UPS and EPS units;
 Electrical Power plants and substation;
 Transportation.
Standards
 IEC60896-21/22: 2004
 DIN43539-T5 1984
 IEC61427-2005
 YD/T1360-2005
 GB/T 22473-2008
Battery Construction
GFMJ-200 and GFMJ-300 GFMJ-400/500/600
Product
In tro d u ctio n
02

GFMJ-800 and 1000
General Specification
GFMJ series
Table 1-1 GFMJ series general specification
Battery Type
Rated
Voltage
(V)
Rated
Capacity
(Ah,25℃)
Dimensions (mm)
Weight
(kg)
Short
Circuit
Current (A)
Internal
Resistance
(mΩ,25℃)
Terminal
Type
Terminal
Layout
C
10
1.80V/cell
L W H TH
GFMJ-200 2 200 171 107 334 344 14.8 2800 0.68 M8×Φ18 F
GFMJ-300 2 300 171 151 334 344 21.3 3600 0.54 M8×Φ18 F
GFMJ-400 2 400 211 175 334 344 30 4350 0.45 M8×Φ18 H
GFMJ-500 2 500 243 174 334 344 35.5 5020 0.39 M8×Φ18 H
GFMJ-600 2 600 302 177 334 344 44 5860 0.33 M8×Φ18 H
GFMJ-800 2 800 410 175 334 344 60 6900 0.28 M8×Φ18 K
GFMJ-1000 2 1000 478 175 334 344 71 8000 0.24 M8×Φ18 K
Terminal Layout
Terminal Type
Product
In tro d u ctio n
03

VRLA Technology
The electrochemical reaction of batteries in charge and discharge process as follows:
Discharge
PbO
2
+2H
2
SO
4
+ Pb PbSO
4
+ 2H
2
O + PbSO
4
Charge
In the final stage of charge process, active substance in positive plate is fully transformed to lead
dioxide, but negative plate has not reached fully charged stage, the process of active substance in
negative plate transforming to spongy lead is not finished, oxygen gas generated in positive plate
reaches the negative plate through separator pores and then reacts with active substance in
negative plate, resulting depolarized state in negative plate, and restraining the generation of
hydrogen.
Principle of the oxygen reduction cycle as follows:
Product
In tro d u ctio n
04

Chapter II: Electrical Characteristics
Performance Curve
Cycle performance curve ( 25℃)
Figure 2-1 GFMJ series battery cycle times curve at different depth of discharge
Voltage curve of simulation wind energy system cycle application
Figure 2-3 Voltage curve of simulation wind energy system cycle application
Charge characteristic curve under different depth of discharge ( 25℃)
Figure 2-4 Charge characteristic curve under different depth of discharge
Electrical Characteristics
05

Performance Data
Constant current discharge data
Table 2-2 GFMJ Battery Constant Current Discharge Data Sheet (Amperes, 25 ℃)
Constant Current Discharge Data Sheet (25℃)-------Amperes(A)
Battery Type
End Voltage
(V/cell)
Discharge Time
5min 10min 15min 20min 30min 1 h 2 h 3 h 5 h 6 h 8 h 10 h 20 h 24 h 48 h 100 h 120 h 240 h
GFMJ-200
1.65 340 310 288 260 202 125 75 55 38 34.00 26.60 22.10 11.20 9.45 4.86 2.51 2.18 1.16
1.70 320 295 260 227 190 123 73.7 54.4 37.1 32.20 25.80 21.30 10.80 9.20 4.86 2.51 2.18 1.16
1.75 300 279 248 219 184 121 72.3 53.6 36.4 31.70 25.30 20.90 10.60 9.10 4.86 2.51 2.18 1.16
1.80 280 265 229 202 170 112 69.4 51.2 35 30.50 24.30 20.00 10.20 9.02 4.86 2.51 2.18 1.16
1.85 240 229 209 189 159 108 65.3 48.0 32.9 28.60 22.80 18.90 9.80 8.90 4.86 2.51 2.18 1.16
GFMJ-300
1.65 510 465 432 390 303 188 112.5 82.5 57 51.00 39.90 33.75 16.95 14.22 7.29 3.75 3.27 1.74
1.70 480 443 390 341 285 185 110.6 81.6 55.65 48.30 38.70 31.95 16.65 14.05 7.29 3.75 3.27 1.74
1.75 450 419 372 329 276 182 108.5 80.4 54.6 47.55 37.95 31.35 16.50 13.90 7.29 3.75 3.27 1.74
1.80 420 398 344 303 255 168 104.1 76.8 52.5 45.75 36.45 30.00 16.20 13.72 7.29 3.75 3.27 1.74
1.85 360 344 314 284 239 162 98.0 72.0 49.4 42.90 34.20 28.35 15.30 13.20 7.29 3.75 3.27 1.74
GFMJ-400
1.65 680 620 576 520 404 250 150 110 76 68.00 53.20 45.00 22.60 19.02 9.72 5.00 4.36 2.32
1.70 640 590 520 454 380 246 147.4 108.8 74.2 64.40 51.60 42.60 22.20 18.68 9.72 5.00 4.36 2.32
1.75 600 558 496 438 368 242 144.6 107.2 72.8 63.40 50.60 41.80 22.00 18.58 9.72 5.00 4.36 2.32
1.80 560 530 458 404 340 224 138.8 102.4 70 61.00 48.60 40.00 21.60 18.43 9.72 5.00 4.36 2.32
1.85 480 458 418 378 318 216 130.6 96.0 65.8 57.20 45.60 37.80 20.40 17.60 9.72 5.00 4.36 2.32
GFMJ-500
1.65 850 775 720 650 505 313 187.5 137.5 95 85.00 66.50 56.25 28.25 23.75 12.15 6.25 5.45 2.90
1.70 800 738 650 568 475 308 184.3 136 92.75 80.50 64.50 53.25 27.75 23.30 12.15 6.25 5.45 2.90
1.75 750 698 620 548 460 303 180.8 134 91 79.25 63.25 52.25 27.50 23.10 12.15 6.25 5.45 2.90
1.80 700 663 573 505 425 280 173.5 128 87.5 76.25 60.75 50.00 27.00 23.10 12.15 6.25 5.45 2.90
1.85 600 573 523 473 398 270 163.3 120.0 82.3 71.50 57.00 47.25 25.50 22.00 12.15 6.25 5.45 2.90
GFMJ-600
1.65 1020 930 864 780 606 375 225 165 114 102.00 79.80 67.50 33.90 27.72 14.58 7.50 6.54 3.48
1.70 960 885 780 681 570 369 221.1 163.2 111.3 96.60 77.40 63.90 33.30 27.72 14.58 7.50 6.54 3.48
1.75 900 837 744 657 552 363 216.9 160.8 109.2 95.10 75.90 62.70 33.00 27.72 14.58 7.50 6.54 3.48
1.80 840 795 687 606 510 336 208.2 153.6 105 91.50 72.90 60.00 32.40 27.72 14.58 7.50 6.54 3.48
1.85 720 687 627 567 477 324 195.9 144.0 98.7 85.80 68.40 56.70 30.60 26.40 14.58 7.50 6.54 3.48
GFMJ-800
1.65 1360 1240 1152 1040 808 500 300 220 152 136.00 106.40 90.00 45.20 38.35 19.44 10.00 8.72 4.64
1.70 1280 1180 1040 908 760 492 294.8 217.6 148.4 128.80 103.20 85.20 44.40 38.00 19.44 10.00 8.72 4.64
1.75 1200 1116 992 876 736 484 289.2 214.4 145.6 126.80 101.20 83.60 44.00 37.40 19.44 10.00 8.72 4.64
1.80 1120 1060 916 808 680 448 277.6 204.8 140 122.00 97.20 80.00 43.20 36.96 19.44 10.00 8.72 4.64
1.85 960 916 836 756 636 432 261.2 192.0 131.6 114.40 91.20 75.60 40.80 36.25 19.44 10.00 8.72 4.64
Electrical Characteristics
06

Table 2-2 GFMJ 2V Battery Constant Current Discharge Data Sheet (Amperes, 25 ℃)
Constant Current Discharge Data Sheet (25℃)-------Amperes(A)
Battery Type
End Voltage
(V/cell)
Discharge Time
5min 10min 15min 20min 30min 1 h 2 h 3 h 5 h 6 h 8 h 10 h 20 h 24 h 48 h 100 h 120 h 240 h
GFMJ-1000
1.65 1700 1550 1440 1300 1010 625 375 275 190 170.00 133.00 112.50 56.50 47.80 24.30 12.50 10.90 5.80
1.70 1600 1475 1300 1135 950 615 368.5 272 185.5 161.00 129.00 106.50 55.50 47.40 24.30 12.50 10.90 5.80
1.75 1500 1395 1240 1095 920 605 361.5 268 182 158.50 126.50 104.50 55.00 47.10 24.30 12.50 10.90 5.80
1.80 1400 1325 1145 1010 850 560 347 256 175 152.50 121.50 100.00 54.00 46.80 24.30 12.50 10.90 5.80
1.85 1200 1145 1045 945 795 540 326.5 240.0 164.5 143.00 114.00 94.50 51.00 46.50 24.30 12.50 10.90 5.80
Constant power discharge data
Table 2-4 GFMJ Battery Constant Power Discharge Data Sheet (W/cell, 25℃)
Constant Power Discharge Data Sheet (25℃)-------Watt (W)
Battery Type
End Voltage
(V/cell)
Discharge Time
5min 10min 15min 20min 30min 1 h 2 h 3 h 5 h 6 h 8 h 10 h 20 h 24 h 48 h 100 h 120 h 240 h
GFMJ-200
1.65 594 551 518 471 369 232 140 104 72 50.10 40.00 33.00 18.30 16.90 9.72 5.00 4.40 2.34
1.70 569 534 475 418 351 230 139 104 71 48.60 38.50 31.90 18.30 16.70 9.72 5.00 4.40 2.34
1.75 547 515 462 410 346 229 138 103 70 46.90 37.20 30.70 18.30 16.50 9.72 5.00 4.40 2.34
1.80 523 498 434 383 325 214 135 99 68 45.20 35.80 30.00 18.30 16.10 9.72 5.00 4.40 2.34
1.85 458 439 402 366 309 211 128.0 94.0 65.0 42.90 34.10 28.30 17.60 15.30 9.72 5.00 4.40 2.34
GFMJ-300
1.65 891 827 777 707 554 348 210 156 108 75.15 60.00 49.50 25.35 27.45 14.58 7.50 6.60 3.51
1.70 854 801 713 627 527 345 208.5 156 106.5 72.90 57.75 47.85 25.05 27.45 14.58 7.50 6.60 3.51
1.75 821 773 693 615 519 344 207 154.5 105 70.35 55.80 46.05 24.75 27.45 14.58 7.50 6.60 3.51
1.80 785 747 651 575 488 321 202.5 148.5 102 67.80 53.70 45.00 24.15 27.45 14.58 7.50 6.60 3.51
1.85 687 659 603 549 464 317 192.0 141.0 97.5 64.35 51.15 42.45 22.95 26.40 14.58 7.50 6.60 3.51
GFMJ-400
1.65 1188 1102 1036 942 738 464 280 208 144 100.20 80.00 66.00 33.80 30.60 19.44 10.00 8.80 4.68
1.70 1138 1068 950 836 702 460 278 208 142 97.20 77.00 63.80 33.40 29.80 19.44 10.00 8.80 4.68
1.75 1094 1030 924 820 692 458 276 206 140 93.80 74.40 61.40 33.00 29.20 19.44 10.00 8.80 4.68
1.80 1046 996 868 766 650 428 270 198 136 90.40 71.60 60.00 32.20 28.90 19.44 10.00 8.80 4.68
1.85 916 878 804 732 618 422 256.0 188.0 130.0 85.80 68.20 56.60 30.60 28.30 19.44 10.00 8.80 4.68
GFMJ-500
1.65 1485 1378 1295 1178 923 580 350 260 180 125.25 100.00 82.50 42.25 39.80 24.30 12.50 11.00 5.85
1.70 1423 1335 1188 1045 878 575 347.5 260 177.5 121.50 96.25 79.75 41.75 39.40 24.30 12.50 11.00 5.85
1.75 1368 1288 1155 1025 865 573 345 257.5 175 117.25 93.00 76.75 41.25 39.00 24.30 12.50 11.00 5.85
1.80 1308 1245 1085 958 813 535 337.5 247.5 170 113.00 89.50 75.00 40.25 38.60 24.30 12.50 11.00 5.85
1.85 1145 1098 1005 915 773 528 320.0 235.0 162.5 107.25 85.25 70.75 38.25 36.90 24.30 12.50 11.00 5.85
Electrical Characteristics
07

Table 2-4 GFMJ Battery Constant Power Discharge Data Sheet (W/cell, 25℃)
Constant Power Discharge Data Sheet (25℃)-------Watt (W)
Battery Type
End Voltage
(V/cell)
Discharge Time
5min 10min 15min 20min 30min 1 h 2 h 3 h 5 h 6 h 8 h 10 h 20 h 24 h 48 h 100 h 120 h 240 h
GFMJ-600
1.65 1782 1653 1554 1413 1107 696 420 312 216 150.00 120.00 99.00 50.70 48.70 29.16 15.00 13.20 7.02
1.70 1707 1602 1425 1254 1053 690 417 312 213 146.00 116.00 95.70 50.10 48.10 29.16 15.00 13.20 7.02
1.75 1641 1545 1386 1230 1038 687 414 309 210 141.00 112.00 92.10 49.50 47.50 29.16 15.00 13.20 7.02
1.80 1569 1494 1302 1149 975 642 405 297 204 136.00 107.00 90.00 48.30 46.50 29.16 15.00 13.20 7.02
1.85 1374 1317 1206 1098 927 633 384.0 282.0 195.0 129.00 102.00 84.90 45.90 44.50 29.16 15.00 13.20 7.02
GFMJ-800
1.65 2376 2204 2072 1884 1476 928 560 416 288 200.00 160.00 132.00 67.60 63.40 38.88 20.00 17.60 9.36
1.70 2276 2136 1900 1672 1404 920 556 416 284 194.00 154.00 128.00 66.80 63.00 38.88 20.00 17.60 9.36
1.75 2188 2060 1848 1640 1384 916 552 412 280 188.00 149.00 123.00 66.00 62.40 38.88 20.00 17.60 9.36
1.80 2092 1992 1736 1532 1300 856 540 396 272 181.00 143.00 120.00 64.40 61.80 38.88 20.00 17.60 9.36
1.85 1832 1756 1608 1464 1236 844 512.0 376.0 260.0 172.00 136.00 113.00 61.20 60.70 38.88 20.00 17.60 9.36
GFMJ-1000
1.65 2970 2755 2590 2355 1845 1160 700 520 360 251.00 200.00 165.00 84.50 91.50 48.60 25.00 22.00 11.70
1.70 2845 2670 2375 2090 1755 1150 695 520 355 243.00 193.00 160.00 83.50 91.50 48.60 25.00 22.00 11.70
1.75 2735 2575 2310 2050 1730 1145 690 515 350 235.00 186.00 154.00 82.50 91.50 48.60 25.00 22.00 11.70
1.80 2615 2490 2170 1915 1625 1070 675 495 340 226.00 179.00 150.00 80.50 91.50 48.60 25.00 22.00 11.70
1.85 2290 2195 2010 1830 1545 1055 640.0 470.0 325.0 215.00 171.00 142.00 76.50 88.00 48.60 25.00 22.00 11.70
Electrical Characteristics
08

Chapter III: Operation and Maintenance
Security Instruction
Please read these instructions carefully in order to ensure correct, safe and effective operation.
This manual provides you very important guidance for installation and operation, which will
guarantee your equipment with optimal performance and longer service life.
For your safety, please do not open the batteries;
As batteries contain lead which can potentially be harmful to the environment and health, and
as batteries are connected to electricity, they must be installed, maintained and replaced by
skilled personnel only.
Used batteries must be recycled and disposed properly as improper disposal of batteries is
harmful to the environment and health. Used batteries shall be properly disposed following
relative regulations and laws.
It is strictly forbidden to mix batteries with different specifications, manufacturers and
capacities.
All installations must comply with the safety regulations and norms. Read through our
Operation Guide / Safety Instructions before starting any installation work.
Notices
Warning Electrical shock
Protective eyewear and
clothing required
Keep children away from
the batteries
No short circuit
No flames and sparks
Recycle Proper disposal Read instructions
Electrolyte is highly
corrosive
Security Instruction
09

Discharge
End voltage with different discharge rate must be less than the specified value. Charge the battery
as soon as possible after discharge.
In order to extend the service life, the depth of discharge should be less than 60% of the Nominal
capacity. The discharge over 60% DOD is deep discharge and would shorten the service life.
Under the temperature of -25℃, discharge over 60% DOD is prohibited, except protective
measure is adopted such as raising temperature.
Temperature
The operation temperature range is -20℃~55℃. All the performance data is measured at ambient
temperature of 25℃.The optimal temperature is 25℃±5℃, over high temperature would shorten
the service life and over low temperature would lower the capacity available. The highest
acceptable temperature is 55℃.
Temperature Effect On Battery Capacity
Figure 3-1 temperature effect on battery capacity
Operation and maintenance
10

Temperature Effect on Battery Design Life
Figure 3-2 GFMJ series temperature effect on battery design life curve
Floating Charge and Equalizing charge
Floating charge
Floating operation is the best operation condition for battery. In floating operation, the battery
keep fully charged state, under this condition, battery could reach the longest service life.
Under the temperature of 25℃, recommended floating charge voltage setting value is 2.22
V/cell.
In such method, it take about 24~36h for battery fully charged. For achieving better
performance, the floating charge voltage should be suitable adjusted according to ambient
temperature, temperature compensation coefficient is -3.5mV/℃/cell, for details please refer to
Table 3-1.
Table 3-1 Floating charge voltage under different temperature
Ambient Temperature (℃) Floating Charge Voltage (V/cell)
0 2.32
10 2.28
15 2.26
20 2.24
25 2.22
30 2.20
35 2.18
Operation and maintenance
11

Equalizing charge
Equalizing charge or supplementary charge is needed in the following cases:
 After finish installation, before the battery system is put into operation, the battery bank
should be supplementary charged.
 The battery is out of work beyond 6 months.
 Running in full-floating operation for a long term, but not discharge under more than
40%C
10
capacity, the batteries need an equalizing charge regularly and the equalizing
charge cycle are 6 months to one year.
Recommended charge method as follows:
 2.35V/cell with limited current of 0.15 C
10
(A), charge for 8~12 hours (non-continuous
charge is allowed)
 Charge voltage shall be adjusted according to the ambient temperature, temperature
compensation coefficient is ±3.5mV/cell/℃, for details please refer to table 3-2.
Table 3-2 Equalizing charge voltage under different temperature
Ambient Temperature (℃) Equalizing Charge Voltage (V/cell)
0 2.43
10 2.39
15 2.37
20 2.35
25 2.33
30 2.31
35 2.29
After equalizing charge, for batteries with voltage lower than 2.18V/cell, we should make the
battery discharged in 0.1C
10
A for 4-6 hours, and then charge the battery with constant voltage
of 2.35V / cell and limited current of 0.15C
10
A.
Operation and maintenance
12

Recharge
Recharge the battery immediately after discharge according to the below method:
Charge the battery with constant current of no more than 0.2C
10
(A), until the battery voltage rises
to 2.33~2.37V/cell, then change to constant voltage charge of 2.33~2.37V/cell until the charge
completed. Any of the following two items can be regarded as the fully charged symbol.
 Refer to the required time as table 3-3.
 In constant voltage case, the charge current keep unchanged for 3 hours in the final stage of
charge.
Charge voltage shall be adjusted according to the ambient temperature, temperature
compensation coefficient is ±3.5mV/℃/ cell.
Table 3-3 Required charge time in different depth of discharge
Depth of
discharge (%)
Charge current of
constant current
charge(A)
Time for changing constant
current charge to constant
voltage charge(h)
Charge voltage of
constant voltage
charge(V)
Charge time(h)
20
0.1C
20
1.6 2.33 8
0.15C
20
1.2 2.33 6
50
0.1C
20
4.3 2.33 14
0.15C
20
3.3 2.33 12
80
0.1C
20
6.8 2.33 16
0.15C
20
5.5 2.33 14
100
0.1C
20
8.7 2.33 18
0.15C
20
6.8 2.33 16
Storage
The battery should be stored in clean and dry environment .
Storage time: battery is ex-work in fully charged, storage time should be limited, for ensuring
battery performance, storage time please do not exceed following time:
 Under 25℃, six months
 Under 30℃, three months
 Under 40℃, six weeks
The battery supplementary charge method during the storage is: charge battery with 2.35V/cell for
8 to 12 hours.
Operation and maintenance
13

Table 3-4 Open circuit voltage at different charge state
Charge State Voltage(V)/cell
100% ≥2.18
80% ≥2.14
60% ≥2.10
40% ≥2.08
20% ≥2.04
It is necessary to limit the current, and the optimum limiting value is within 0.2C
10
( A ) .
Testing of the open circuit with the storage battery can decide whether it shall be supplementary
charged. If the voltage drops to 2.10V/cell, the battery shall be supplementary charged in time.
Improper maintenance will shorten the battery service life or decrease the service performance.
Abnormal Operation Condition
Unmeant deep discharge, battery can‘t be charged for a long term with small current which is
lower than system requirement, or else, the battery capacity will fall down early.
Battery is discharged fully.
Sulphuric acid is run out completely, only water is left in electrolyte, under this condition recharge
will cause lead pine-tree crystal, it will result that separator is penetrated, thus short circuit is
occurred. Plate sulfating grade is highest, and internal resistance is largest.
Installation
Batteries integrated in equipment should be compliance with the installation instructions, Battery
which is separately installed on rack and cabinets should be connected by bolts to the foundation.
Battery racks or cabinets should be properly installed according to instructions.
Connection
Before connecting, make an overall check of all the batteries and connectors to see whether there
is hardware damage or manufacturing defects, and make sure the right polarity.
Operation and maintenance
14

The charge equipment are in cut-off state and without loads, then connect the positive and
negative terminals to chargers.
During the installation and transit of the battery, use insulted tools, gloves, aprons and safety
glasses, avoiding battery is impacted, do not twist connecting terminals and safety valve in transit.
Placing tools and conductive articles on the battery is strictly prohibited.
Dusty connecting terminal or loose connection will cause battery sparkle, so please keep the
connecting terminals clean and tighten the connectors as per required torque value, but please do
not cause torsional stress to terminals.
Commissioning
Assure battery operation in the clean environment.
Before operation, battery charge voltage must be adjusted as constant value as per ambient
temperature. Such as, at 25℃, charge the battery with 2.23V/cell for 16 to 24 hours, or with
2.33Vpc for 8 to 12 hours;
If the storage condition is serious, adjust charge voltage is necessary.
Maintenance
1. Cleaning Notes:
Battery appearance, terminal area and working environment must be kept clean and dry.
In battery cleaning process, avoid use of electrostatic cleaning tools.
Clean the battery with damp cloth. Do not use of gasoline, alcohol or other organic solvents;
also do not use cloth containing these substances.
2. Inspection and Maintenance
VRLA batteries are not maintenance-free batteries, battery operation process gradually
changes with time. In order to ensure good battery usage, operational management and
control are very important. To understand the operation status of batteries and equipment
and to prevent accidental damage, regular maintenance is required. Periodically check
and record the measurements using the following method for batteries used in UPS system
room and base station (including outdoor station) site.
Operation and maintenance
15

2.1 Monthly Maintenance Inspection Items
Item Content Standard Maintenance
1-Temperature
Detection
1-Measure and record
battery terminal and
container temperature
by using infrared
thermometer.
2-Use infrared
thermometer to measure
ambient temperature.
1-
Ambient Temp:
-20℃~+55℃
2-Recommended
Temperature:
25±5℃
1-Check that the battery temperature
compensation functions are turned on and
that the battery temperature probe is
properly installed.
2-Check that the room temperature
conditioning equipment such as
air-conditioning is turned on.
2- Battery Float
Voltage
Measurement
Measure floating voltage
on positive and negative
terminal of the battery
group with multimeter.
Measurement and
control module
display operating
voltage differences
within 0.05V
If the monitoring module shows
inconsistency even after adjusting, replace
or repair it.
3-Battery
Appearance
Inspect the battery
container for bulging,
leakage and damage.
Normal
Appearance
Confirm the reason for any abnormal
appearance, if it affects normal use,
replace the battery.
Check for dirt stains Clean Appearance Clean dust and dirt with damp cloth
Inspect the connection
cables, terminals, etc.
for oxidation, rust &
other abnormalities
No oxidation, rust If you find oxidation or rust, replace the
connecting wire, and swab terminal with
Vaseline etc.
4- Joints
Use hex or torque
wrench to tighten loose
bolts.
Securely connected
If found bolt loosened, tighten it
1-Battery cables,
terminals clean /
non-corrosive.
2- Follow the installation
sequence: 1. Spring
washers 2. Flat washers
3, Nuts
No evidence of
corrosion
If slight corrosion found after connecting
bar removed, clean it with cloth. If severe
corrosion, replace the connection bar and
clean terminal with sandpaper before
tightening.
5-Safety Valve
Testing
Inspect for white
crystalline or liquid
surrounding the safety
valve.
No crystalline or
liquid surrounding
the safety valve
1-For crystalline, use a dry cloth for
cleaning.
2-If there is crystalline or liquid, clean it
with a dry cloth. Check and tighten the
safety valve
Operation and maintenance
16

2.2 Quarterly Maintenance Inspection Items
In addition to the monthly maintenance items above, inspect the following items:
Item Content Standard Maintenance
1- Measurement of
each battery’s
floating voltage
Measure each battery’s
floating voltage by using
multimeter.
Battery floating
voltage differential
pressure must meet
the following
values:
2V series 90 mV
6V series 240 mV
12V series 480 mV
If there are deviations from the reference
values, first discharge the battery group and
then equalizing charge. After equalizing
charge is completed, change to float charge
and run for two months. If there are still
deviations from the reference values, replace
and recycle the battery.
2-Use the
equalizing charge
to recover the
batteries which
have either lower
capacity or
discharge voltage
than the other
batteries.
Use the equalizing
charge to charge the
battery 10 hours or
more. In case a battery
has a severe deviation
compared to other
batteries, perform
charge / discharge
cycles three times.
Single battery
discharge voltage in
the battery group
must meet the
following values:
2V: 200mV, 6V:
350mV
12V: 600mV
If the battery performance cannot be
recovered, it must be replaced.
2.3 Annual Maintenance Inspection Items
In addition to the quarterly maintenance items above, inspect the following items:
Item Content Standard Maintenance
1- Discharge test
Disconnect the AC, take
load discharge or
discharge online method
to check that discharge
capacity is minimum
30%-40% of nominal
capacity
At the end of
discharge, battery
voltage should be
more than
1.90V/cell,
differential pressure
must meet the
following values:
2V series 200mV
6V series 350mV
12V series 600mV
If the battery voltage is lower
than a voltage reference value or the
differential pressure is greater than the
reference value, discharge the battery,
then equalizing charge, then change to
float charge and run for 1-2 months. If
reference values still exceeded, contact
our technical team for assistance.
2- Capacity Test
Use on-line or off-line
intelligent discharge
device for discharging
batteries until the end
voltage has reached
1.80V / cell
In back-up use the
capacity to be
maintained must be
more than 80% and
in energy storage
use more than 60%
of the reference
capacity
Recovery test: measure and record
various parameters specified in the
monthly / quarterly maintenance items as
well each battery’s end voltage during the
discharge test. If the battery performance
cannot be recovered, replace and re-cycle
the battery.
Operation and maintenance
17

3-Measure and
verify the
controller
parameters
1-Measure the limited
charging current values.
2-Check that the
equalizing charge starts
and ends automatically.
3- Verify the automatic
start of battery discharge
protection.
Actual operation
parameters to meet
with the set
parameters
In case power equipment and/or controller
fails, arrange repair in a due course to
ensure correct battery performance and
avoidance of reduced battery lifetime.
Maintenance notes
 Operate and store batteries only in an upright position.
 Ensure that the battery installation complies with the design requirements and installation
documents.
 Please use only insulated tools during operation and maintenance, any metal objects to be
put on top of the battery is strictly prohibited.
Operation and maintenance
18