ECO-WORTHY LIFEPO4 12V 100Ah User manual

CATALOG
1.Safety Instructions
2.Specifications
3.Battery Performance Relations
4.Installation Guide
Installation Environment
Preparation
Inspection
Cable Sizing
Batteries Connection
Securing Cable Connections
5.Charging Method
6.Troubleshooting
7.Frequently Asked Questions
8.Maintenance
9.Support
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Please keep the battery away from water, heat sources, sparks, and hazardous
chemicals.
Please keep the battery out of the reach of young children.
Please wear proper protective equipment when working on the battery.
Please make sure any battery charger or charge controller has been disconnected
before working on the battery.
Please use insulated tools when working on the battery. Please use recycling
·DO NOT puncture, drop, crush, burn, penetrate, shake, or strike the battery.
·DO NOT open, dismantle, or modify the battery.
·DO NOT touch any terminals or connectors.
·DO NOT connect or disconnect terminals from the battery without first disconnect-
ing loads.
·DO NOT place tools on top of the battery.
·DO NOT wear jewelry or other metal objects when working on or around the battery.
·DO NOT dispose of the battery as household waste.
·DO NOT touch the exposed electrolyte or powder if the battery casing is damaged.
- 1 -
Safety Instructions
The manufacturer accepts no liability for any damage caused by:
Force majeure including fire, typhoon, flood, earthquake, war, and terrorism.
Intentional or accidental misuse, abuse, neglect or improper maintenance, and use
under abnormal conditions.
Improper installation, improper operation, and malfunction of a peripheral device.
Contamination with hazardous substances, diseases, vermin, or radiation.
Alterations to the product without express written consent from the manufacturer.
Disclaimer

14.5~14.6V/
28.9~29.6V/
57.7~59.2V
13.9~14.2V/
27.7~28.4V/
55.3~56.8V
9.2~9.5V/
18.4~19.1V/
36.8~38.3V
10.5~10.8V/
20.9~21.6V/
41.7~43.2V
Discharge Current≥500A
Remove Short Circuits
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Protections
Over-voltage
Under-voltage
Short Circuit
Condition（12V/24V/48V）
- 2 -
Battery parameters
Specifications
Battery Management System(BMS)
Warning and Protection
The battery contains a battery management system (BMS) that warns you and
protects the battery from over-voltage, under-voltage, short circuit. Please refer to
the following table for the triggering and recovery condition of each warning and
protection.
Battery Type
Rated Power
Nominal Voltage
Voltage Range
Charge Voltage
Maximum Continuous Charge Current
Maximum Continuous Discharge Current
Standard Operating Temperature
Charge Temperature Range
Discharge Temperature Range
Dimension
Weight
Terminal Bolt Size
12V 100Ah
1280Wh
12.8V
10V-14.6V
14.6V
50A
100A
11.56kg/25.5lbs
M8
260*168*209mm/
10.2*6.6*8.2inch
330*175*215mm/
13.0*6.9*8.5inch
343*188*245mm/
13.5*7.4*9.6 inch
343*188*245mm/
13.5*7.4*9.6 inch
12V 150Ah
1920Wh
12.8V
10V-14.6V
14.6V
80A
150A
15.9kg/35lbs
M8
77°F±9°F / 25°C±5°C
32°F~131°F / 0°C~55°C
-4°F~131°F / -20°C~55°C
24V 100Ah
2560Wh
25.6V
20V-29V
29.2V
80A
100A
18.3kg/40.3lbs
M8
48V 50Ah
2560Wh
51.2V
40V-58V
58.4V
60A
60A
18.4kg/40.6lbs
M8

- 3 -
Battery Performance Relations
Sample:12V 100Ah battery
environmental conditions required for all tests: 25±5℃/77°F±9°F
Note: 24V 100Ah, 48V 50Ah batteries have similar curves as the 12V 100Ah Type
1.4.1.1
1.4.1.2
0 20 40 60 80 100 120
13.6
12.8
12.0
11.2
10.4
9.6
8.8
8.0
55 ℃
25℃
10℃
0℃
-10℃
-20℃
Discharge Capacity Under Different Temperatures
Capacity/Ah
Voltage/v
Battery Capacity & Discharge Rate
13.6
12.8
12.0
11.2
10.4
9.6
8.8
8.0
0.5C
1C
2C
3C
4C
5C
6C
0 10 20 30 40 50 60 70 80 90 100 110
Capacity/Ah
Voltage/v

- 4 -
General Installation Guide
Installation Environment
The battery should be installed in a clean, cool, and dry place, keeping water, oil, and
dirt away from the battery. The accumulation of these materials on the battery can
cause current leakage, resulting in self-discharge and a possible short-circuit.
Sufficient air flow must be provided to prevent excessive heat build-up and to
minimize temperature variation between the batteries.
Preparation
Before the installation and operation of the battery, it is recommended to have the
following equipment or tools available:
Proper Protective Equipment Insulated Tool(s)
Multimeter Battery Cable
Battery Charger / Charge Controller
1.4.1.3
02000 3000 4000 5000 6000 7000 8000 9000
100
90
80
70
60
50
40
SLA Battery Cycles LiFePo4 Battery Cycles
Capacity (%)
30%DOD
50%DOD
80%DOD
100%DOD
Cycle Life & Capacity @ LiFePO4 Battery Cycles

Inspection
Please check for visible damage including cracks, dents, deformation, and other
visible abnormalities. The top of the battery and terminal connections should be
clean, free of dirt and corrosion, and dry. If any problems are detected with the
battery, please contact us for assistance.
DO NOT short-circuit the battery terminals. Doing so can cause current bursts and
lead to irreversible damage to the system and the battery.
Please verify the polarity before connecting wiring. Reversing polarity can and will
destroy the battery.
Please use circuit breakers, fuses, or disconnects appropriately sized by a certified
electrician, licensed installers, or regional code authorities to protect all electrical
equipment.
Cable Sizing
Battery cables should be appropriately sized to handle the expected load.
Please refer to the following table for the ampacities of copper cables with different
gauge sizes.
- 5 -
Copper Cable Gauge Size(AWG/MM²)
14(2.08)
12(3.31)
10(5.25)
8(8.36)
6(13.3)
4(21.1)
2(33.6)
1(42.4)
1/0(53.5)
2/0(67.4)
4/0(107)
Ampacity(A)
20
25
35
50
65
85
115
130
150
175
230

Batteries Connection
DO NOT string batteries with different chemistry, brands, models, rated capacities,
or nominal voltages in parallel.
Please avoid too high a voltage difference between paralleled batteries, despite the
auto-balancing function, to avoid triggering the over-voltage protection.
In parallel battery banks, the cables between each battery should be of equal length
to ensure that all batteries in the system can work equally together.
It is not recommended to connect more than 4 batteries in parallel to ensure the
normal functioning of auto balance.
Note: If you need to connect 2 or more 12v batteries in series, please prepare
a battery equalizer for balancing charge. Or you should charge them separate-
ly to avoid the voltage difference.
24V 100Ah battery, also 48V 50Ah battery should not be wired in series. It’s
hard to keep the charging balance for that series string.
If you want to expand your battery bank capacity, parallel connection is a
better way without charging issues.
- 6 -
The series connection means that the negative
electrode of the first lithium battery is connected to
the positive electrode of the second lithium battery,
and the negative electrode of the second lithium
battery is connected to the positive electrode of the
third battery, and so on, until the required voltage is
reached.
The voltage of this connection method is all The
total voltage of the cells connected together, and
the string current rating keeps as single one battery. Series

- 7 -
Securing Cable Connections
Please use an insulated Philips screwdriver to tighten the cable connections.
Please secure all cable connections to the proper specification in order to ensure
good contact between the cable lugs and the terminals.
Over-tightening cable connections can cause terminal breakage and loose cable
connections can cause terminal meltdown or fire.
To ensure good contact between the cable lugs and the terminals, please use the
appropriate number of washers to allow for as much thread engagement as possible
without bottoming out the terminal bolt. The correct number of washers can be deter-
mined by hand-tightening the terminal bolt with just the cable lug in place and
observing the gap that is present. Use the number of washers needed so that the
washer stack is slightly larger than the observed gap.
It is important to ensure that the cable lug and the top surface of the terminal are in
contact. The washer(s) must be placed on top of the lug. Do not place the washer(s)
between the battery terminal and the cable lug as this can cause high resistance and
excessive heating
The parallel mode means that the positive pole
of the first lithium battery is connected to the
positive pole of the second cell, and the nega-
tive pole is connected to the negative pole, and
so on. The string voltage be as a single battery,
and the total discharge current be as the sum of
all batteries current.
Parallel

Charging Method
- 8 -
You can charge your lithium iron phosphate batteries whenever you want just like
your cellphone. Unlike lead-acid batteries, lithium iron phosphate batteries do not
get damaged if they are left in a partial state of charge, so you don’t have to stress
about getting them charged immediately after use. They also don’t have a memory
effect, so you don’t have to drain them completely before charging.
Battery charger(mains power)
The most ideal way to charge a LiFePO4 battery is with a lithium iron phosphate
battery charger, as it will be programmed with the appropriate voltage limits. Most
lead-acid battery chargers will do the job just fine.
A 12V lithium battery at 20% capacity will hold voltage around 13V, its lead acid will
be approx 11.8v at the same capacity. So if you use lead acid charger to charge your
lithium battery, it may not be fully charged.
To select a proper charger for your battery, you should choose one that capa-
ble to charge the ECO-WORTHY battery to full, its rated output/charging
voltage should match the LiFePO4 battery’s standard charge voltage, which
varies in different battery types, refer to the above parameter table for detailed
data.
Solar panel (DC power)
You can also use solar panel to charge your ECO-WORTHY LiFePO4 battery, but
please make sure to choose a proper controller, it should contain the LiFePO4
battery mode, or Li-ion battery mode. Both PWM controller and MPPT controller are
okay.
If you don't have a controller, you can connect the battery to the solar panel directly,
too. The BMS inside will protect the battery in most time. But if there is a defect on
the battery BMS, the battery will be damaged.

·If you found the battery can not be fully charged to its full voltage
rating(14.6V/29V/58V), the charge tools may not compatible with it, you could check
if the charger/controller contains the proper output voltage for LiFePO4 battery.
·If the charger is suitable, but the battery still can not be fully charged, it’s may due
to the fault in BMS. With glove and some tools, you could open the top cap of the
battery, take out the BMS board, and directly connect the cells wire to the terminals,
then try to charge it without BMS, it’ll be safe if you have a charger/controller with
protections.
·If the connected batteries could not reach the rated capacity, it may because that
the unbalancing charging process causes voltage difference among those individual
batteries You could disconnect them first, and try to charge them one by one, to see
if each battery is in good condition.
· If the battery is over discharged and triggers the over-discharge protection, please
remove the load or inverter, keep the charge process until it recovers. If it’s still can
not be re-charged, try to remove the controller, use a solar panel or something else
with voltage higher than 15V to directly boot it.
Battery Voltage & Actual Capacity
Troubleshooting
- 9 -
13.6V
13.4V
13.3V
13.2V
13.1V
13.0V
12.9V
12.8V
12.5V
12.0V
10.0V
100%
99%
90%
70%
40%
30%
20%
17%
14%
9%
0%

Can I charge lithium batteries in the cold?
Lithium batteries rely on chemical reactions to work, and the cold can slow and even
stop those reactions from occurring. Unfortunately, charging them in low tempera-
tures is not as effective as doing so under normal weather conditions because the
ions that provide the charge do not move properly in cold weather.
There's one hard and fast rule: to prevent irreversible damage to the battery, don't
charge them when the temperature falls below freezing (0°C or 32°F) without reduc-
ing the charge current. Because the lithium batteries suffer from a phenomenon of
lithium metal plating on the anode if charged at high rates in cold temperatures. This
could cause an internal short of the battery and a failure.
Can I leave ECO-WORTHY lithium battery on charging all the time?
For a lithium battery with a low maintenance charging procedure and battery
management system, it's perfectly fine and better than leaving them discharged for
a long period. Regardless of whether it is a dedicated charger or a general charger,
under normal conditions, it has a charging cut-off voltage, which means that it will
stop charging at a certain volt. The same is true for the solar panel controller, and the
controller can also be configured like this. The solar panel is directly connected for
charging. If there is a problem with the BMS, it may be overcharged.
- 10 -
Frequently Asked Questions

Can I recharge my lithium battery from my vehicle alternator?
Yes, but not necessarily to full charge, due to the fact that most Alternators are
adjusted for the lower voltage requirements of the vehicle Lead/Acid Battery
(approximately 13.9v). Lithium Batteries require 14.4 to 14.6Volts to fully charge.
That being said, you can get up to approximately a 70% charge, depending on the
depth of discharge and distance driven while recharging from your vehicle alternator.
- 11 -
Maintenance
To prevent possible leakage, heat generation, and explosion of the battery, please
pay attention to the following precautions:
It is strictly forbidden to immerse the battery in seawater or water. When it is not in
use, it should be placed in a cool and dry environment.
It is forbidden to use and leave the battery near a hot and high temperature source,
such as fire, heater, etc.
It is strictly forbidden to directly plug the positive and negative ends of the battery into
a power socket.
Do not throw the battery into a fire or heater.
It is forbidden to use metal to directly connect the positive and negative electrodes
of the battery to short-circuit.
It is forbidden to transport or store the battery with conductive materials such as
metal and carbon powder.
Do not knock or throw, step on the battery, etc.
It is forbidden to weld the battery directly and pierce the battery with nails or other
sharp objects.

- 12 -
Support
If you met technical problems and cannot find a solution in this manual, please
contact ECO-WORTHY for further assistance
Contact number:
US 1-866-939-8222
UK [phone]
Email: customer[email protected]
ECO-WORTHY reserves the right to change the contents of this manual without
notice