LX ion LX24-46HE1 User manual

Product Manual
LX24-46HE1
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Lithium cells and custom-designed lithium battery packs
Product Manual LX24-46HE1
Product Name
：
25.6 V 46.8 Ah LiFePO4 Battery Pack
Product Reference：LX24-46HE1
Revision
：
1.0

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LX24-46HE1
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Lithium cells and custom-designed lithium battery packs
Contents
Quality Statement...................................................................................................................................3
1. Product Index..........................................................................................................4
1.1. Product Parameter .............................................................................................................................................................. 4
1.2 Characteristics Curve...........................................................................................................................................................5
...........................................................................................................................................................................................................5
2. Battery Usages........................................................................................................ 6
2.1. Charge.......................................................................................................................................................................................... 6
2.2. Discharge .................................................................................................................................................................................. 6
3. Battery Test.............................................................................................................. 6
3.1. Standard Test Requirements........................................................................................................................................ 6
3.2. Standard Charge.................................................................................................................................................................. 6
3.3. Standard Discharge ........................................................................................................................................................... 6
4. Battery Service Environment............................................................................. 7
5. Special Attentions ....................................................................................................................................................7
6. Battery Using and Maintenance ....................................................................... 9
6.1. Battery Storage...................................................................................................................................................................... 9
6.2. Battery Checking Before Using................................................................................................................................. 9
6.3. Battery Installation Notes.............................................................................................................................................. 9
6.4. Battery Working Requirements............................................................................................................................. 10
6.5. Battery Using and Maintenance............................................................................................................................. 10
6.6. Battery Common Troubles and Solutions.........................................................................................................11
7. Other Technical Indicators.................................................................................13
8. Products Disclaimer.............................................................................................13

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Lithium cells and custom-designed lithium battery packs
Quality Statement
Proper use and maintenance will ensure that the battery (or battery system) will
operate reliably and consistently for long periods of time.
After receiving the product, please check if the packaging is in good condition. If the
packing is broken, it may cause damage to the product. If there is any damage,
please contact our after-sales or sales staff within five working days.
Anyone who does not use or maintain the battery according to the manual shall be
deemed to give up the warranty right. Suppliers and its service station have the right
to no longer guaranteethe warranty, and will not compensate for any losses arising
from it. However, the correspondingpaid service can be provided according to the
situation.

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Lithium cells and custom-designed lithium battery packs
1. Product Index
1.1. Product Parameter
No. Items Parameter
1 Product Reference LX24-46HE1
2 Normal Voltage 25.6 V
3
Rated Capacity
46.8 Ah (C5)
4 Min Capacity
44.8 Ah (C5)
5 Energy
About 1198.08 Wh
6 Internal Resistance
≤50 mΩ
7 Size （
259±2
）
mm *
（
167±2
）
mm*
（
212±2
）
mm
8 weight
11±0.3 kg
9 Charge Voltage 28.8±0.15 V
10
Standard Cutoff
Voltage
About 20 V
11 Charge Current ≤20 A
12
Charging cut-off
current
468 mA~936 mA
13 Discharge Current
Normal
Current
40 A
Max
Continuous
Current
40 A-80 A (≤5min)
14 Passive Protection Over charge protection, Over discharge protection, Temperature
protection, Balanced function
15 Positive M8 hole
Negative M8 hole
16 Charge Retention
After charging according to standard 3.2, placing the battery for 28
days under the standard test
conditions, then discharge it under standard 3.3, and the charge
retention rate is ≥80%.
17 Cycle time
The cycle life is not less than 2000, the capacity retention rate is
≥80 %. (Charging according to
3.2 standard, leaving 0.5~1h; discharging according to 3.3 standard,
leaving 0.5~1h, counting 1 cycle time).

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Lithium cells and custom-designed lithium battery packs
1.2 Characteristics Curve

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Lithium cells and custom-designed lithium battery packs
2. Battery Usages
2.1. Charge
Charging terminal of battery is connected to charger appropriate with it, and then
charge. Charging voltage is 28.8±0.15 V.Do not reverse.
2.2. Discharge
Note that the positive and negative9(poles are not reversed as indicated by the battery
case logo), then connect to thematching load.
3. Battery Test
Single cell and Protection board specification are only results of standard test, this is for
reference.
3.1. Standard Test Requirements
Battery tested must be done within 1 month after production. If the battery is not tested
on time due to transportation orother reasons, the battery can be recharged and
discharged for testing.
All tests in this specification should be done in standard atmospheric conditions.
(Temperature: 25± 2 ℃; relative humidity: 65+20 %).
Standard charge voltage is 28.8±0.15 V, standard discharge cut-off voltage is about 20.0 V;
standard current is I5 (when I5 >
the normal work current, test according to the normal
current).
3.2. Standard Charge
Charge the battery with Lithium ion battery special test cabinet, with standard charging
voltage, standard current, constant
current and constant voltage charging to the current
dropping to 0.05 I5·
3.3. Standard Discharge
Discharge the battery with Lithium ion battery special test cabinet, discharge to
standard discharge cut-off voltage withstandard current, constant discharging or until
the battery stops.

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Lithium cells and custom-designed lithium battery packs
4. Battery Service Environment
Battery discharge ambient temperature is -20 ℃~+60 ℃, humidity: RH≦85 %. When the
ambient temperature >45 ℃, please pay attention to the ventilation and heat
dissipation, pay attention to waterproof when ambient humidity is > 85 %, at the same
time the battery surface condensation phenomenon should be avoided. Charging
temperature 0 ℃~ + 45 ℃,humidity: 85 % RH or less, pay attention to waterproof when
ambient humidity is > 85 %.
5. Special Attentions
In order to make full use of the energy efficiency of the battery and prevent accidents
such as leakage or heat generation, please prohibit the followings;
Do not immerse the battery in the water. Once it is in the water or water enters the
battery, isolate it immediately and ask a professional to deal with it.
Do not charge, discharge and leave the battery at temperatures over 60 ℃. Also keep
away from fire, heater or corrosive materials. Otherwise, it can cause overheat, fire,
or function failure, shortened life, or even danger happening.
Do not charge the battery at temperature below 0 ℃.
Do not reverse the positive and negative terminals. Do not short the positive and
negative of the battery.
The battery packs only support 2PCS in series. It is forbidden to connect in parallel
and in series at the same time. The total working current after series connection
cannot exceed the working current specified by the single battery pack. Old and
new battery packs or different batches of battery packs cannot be used in series.
Do not reverse polarity charging. Do not connect the battery electrodes to an
electrical outlet.
Do not transport or store the battery together with metal objects such as hairpins,
necklaces, etc.
Do not strike, trample, throw, fall and shock the battery.

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Do not directly weld the battery and pierce the battery with a nail or other sharp
objects.
Do not use the battery in the location where static electricity and magnetic field is
strong. Otherwise the battery protection circuit may be damaged.
Do not overload the battery.
Do not machine the circuit board, which may damage the internal circuit and cause
function failure.
Do not deform the product under pressure, which may cause electronic
components or part of the circuit damage, and make the product unstable.
Do not remove the case, in case of unnecessary damage.
Do not overcharge or over discharge the battery.
Please use special charger for charging.
Please charge the battery within 12 hours after using. If the battery is not charged
for more than 12 hours after using, please test the battery voltage before charging. If
the voltage of the battery is < 16.0 V, do not charge, need to place in isolation.
Meanwhile please contact our technical staffs.
If the battery leaks and liquid splashes into the eyes or skin, do not rub, wash it with
clean water, and immediately seek medical attention.
In case of accidental fire, dry powder fire extinguisher or sand should be used.
If the battery gives off strange odour, generates heat, becomes discoloured or
deformed, or any abnormality appears during use, storage, or charging, stop
charging and using immediately, remove and isolate it from the device in the safe
way.
The electrode of the discarded battery terminal should be covered with insulating
paper to reduce the safety hazard when laying aside.
Reversing the Positive and negative charging terminal will burn the internal circuit
board, so pay attention to

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6.Battery Using and Maintenance
6.1. Battery Storage
Storage temperature 0 ℃～40 ℃(Optimum storage temperature 15 ℃～25 ℃, dry
preservation).
Battery performance is affected by temperature, the most obvious is the change in
battery capacity, this is normal phenomenon. Avoid condensation caused by
temperature changes during storage, otherwise it will lead to the rust of batteries or
metal parts.
6.2. Battery Checking Before Using
After receiving the battery, first check the packing carefully, please ensure
there’s no shock on the battery during the handling process.
Please check the battery case and accessories if there’s any damage or leakage,
if so, please contact us immediately.
Please check the output connector is correct or not, measure whether the
positive and negative is reversed and whether the voltage is within the normal
standard. In case the battery terminals are dirty or rust, clean the terminals with
a dry cloth before use. Otherwise poor performance may occur due to the poor
connection with the instrument.
6.3. Battery Installation Notes
Please clean up the installation position of the battery to ensure no dust, metal
or other foreign materials. No smoking or fire during installation to avoid short-
circuit of battery and prevent equipment damage or personal injury.
The battery should be installed under the condition with well-ventilated and no
sunlight. Don’t put it under place with possible flooding. The using and storage
of the battery should be kept away from inflammable and explosive materials.
When fastening battery terminals, please don’t use excessive force, or the
terminals could be damaged.
After installation, please check whether the terminal fastening is in place and
whether there are sundries on the surface of the battery. Clean the surface of
battery with dry cloth, please don’t use oil or other volatile organic solvents to
clean, or it may damage it.

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Please make sure that the positive (+) & negative (-) polarity is correctly
connected, or it may fire or damage the battery and electrical appliances.
Test to run the equipment, observe whether the equipment and battery are
abnormal
6.4. Battery Working Requirements
The charge and discharge current of the battery shall not exceed the specified
maximum charge and discharge current, which may affect the service life of the
battery or damage the internal circuit, or even cause danger.
Discharge current shall not exceed the specified maximum discharge current,
which may affect the service life of the battery or damage the internal circuit.
When the battery is short of power, it should be charged in time, which is
beneficial to extend the battery life. If the battery is not charged in time, battery
is in the state of power shortage for a long time, battery life will be affected.
The lithium-ion battery charge and discharge shallow is beneficial to improve
the cycle life. Suggest user each discharge be put to 80% of the nominal capacity.
6.5. Battery Using and Maintenance
The battery would be possible to be at the over-discharged state by its self-
discharge characteristics in case the battery is not used for long time. In order to
prevent over-discharging, the battery shall be charged periodically to maintain
a certain voltage range: 26.64 V~27.2 V, 2 months one cycle. (for battery with
communication function, please maintain it once in 1 month) What's more, the
SOC/ capacity calibration shall be performed. The calibration method is to
charge fully with charger, then discharge to over-discharged protection state.
Don’t use organic solvents to clean the battery case.
Battery is a consumable product with limited cycle life. Please change it in time
when the capacity can’t reach the requirement to avoid any loss of the user.

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In order to prevent the safety problem caused by the failure of the protection
board overcharge protection function, do not charge for a long time. After the
battery is fully charged, remove it. In addition, use the original charger or the one
attached to the battery and operate it according to the instructions. Otherwise,
the battery may be damaged or cause danger.
The shallow charge and discharge of the battery ensures that the battery can be
used economically. Overcharge and over discharge may cause the battery
overheat, fire or function failure, shorten life, or other dangerous.
The battery switch, battery display board and USB are consumed components,
which are not included in the after-sale scope.
Waste lithium batteries should be recycled and disposed in accordance with
local laws.
6.6. Battery Common Troubles and Solutions
Battery voltage is too low after fully charged.
Battery is in long-term storage with no usage, and not maintenance in accordance with
the provisions.
Solution: Please test the battery voltage. If the battery voltage is <16.0 V, it can't be
charged and need to be isolated. Please consult the technicians. If the voltage is ≥
16.0 V, the battery can be isolated to charge, and periodically check to see if it can
be charged normally.
Battery Disconnection
Solution: Remove the battery to check whether the line is broken or not, the
welding joints come off or not, nickel belt breaks or not, and then repair according
to the damage situation.
Protection Board not work
Solution: first, make sure the cable line is contact with the protection board well,
then, observe welding is off or not. If the above conditions are normal, please check
the voltage between B+/B- and P+/ P-, the protection board has been broken if the
voltage difference is very high. Then please do testing in details on protection
board, if not pass, please change another new protection board.

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Battery suffered fierce collision, with character-external battery case damaged or
with electrolyte odour.
Solution: It’s not in the scope of maintenance generally. If needing maintenance, we
need the confirmation of the problem whether on the output line or the battery
itself.
First, open the battery case, check whether the battery P + / C + and P- / C- lines or
joints damaged or not. If damaged, it needs to be replaced. Then, instigating smell
odours method to determine the battery, if there is irritation electrolyte odour,
indicate that the battery has been leaking, and need to test the battery voltage of
each series. If the voltage of one series is quite different from others or much lower
than others, then this series needs to be replaced.
Insufficient capacity
Solution: To charge and discharge the battery with 3~5 cycles generally.
Batterie voltage instability or cannot charge or discharge normally
Faulty welding
Solution: To test the resistance with the internal resistance tester, and confirm the
internal resistance of the battery exceeding a predetermined value or not. If not,
the battery would be in faulty welding condition, the battery needs to be unpacked
and be welded again.
Protection board abnormal
Solution: replace the protection board.
Connector or terminals in poor connecting condition
Solution: Change the terminals or connectors
Battery works properly in charging but could not discharge or discharging well but could
not charge.
Solution: The protection board is damaged; need to change the protection
board.

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7.Other Technical Indicators
If battery protection parameters and other related parameters are needed, please contact
our sales or technical staff, we will provide the information as soon as possible. Your
understanding is highly appreciated.
8.Products Disclaimer
Before using the battery, please read the specifications, usage instruction and some
attentions carefully. Suppliers are not responsible for the incident caused by not obeying
the Manual. The phenomenon such as incorrect using method or wrong circuit
connection, or input power data, working index are inconsistent with the Manual, cause
damage to product, over load and its accessories, we are not responsible for it.