ToBattery LFP1208AP User manual

Thank you for purchasing the ToBattery LFP1208AP LiFePO4 Battery!
Introduction
LiFePO4 chemistry is an evolution in rechargeable battery technology. It is safer, non-toxic, higher
performing, and longer lasting compared to lead-acid batteries. TOBATTERY provides the highest
quality LiFePO4 battery from our ISO9001 certified production facility that guarantees maximum
performance. Please carefully review the information below as they are vital to the safety and
performance of the battery.
Typical Applications
--- Home security alarm, Electronics, Ham Radio, LED Lights, E-Bikes, E-Scooters, etc.
Contents
1 - ToBattery LFP1208AP LiFePO4 Battery
1 - User Manual
Specifications (summary)
Dimensions (LxWxH)
6x2.5x3.75 in
Weight
2.5 lbs.
Battery nominal voltage and capacity
12V, 8Ah
Charging Voltage
14.6V
Charging Current
<4A
Open Circuit Voltage Range
11-14VDC
Maximum Continuous Discharge Current
15A
Maximum Peak Pulse Current
20A (30 sec)
Operating Temperature
- 10°C to 60°C
Protection: PCM/BMS
Overcharge, overdischarge, overcurrent,
balancing
Terminal / connector type
FastON
For the full specification with update, please visit www.Tobattery.com
Caution
●Do not disassemble.
●Do not short circuit positive and negative terminals.
●Recommend charge using LiFePO4 compatible chargers.
●Do not submerge in water, as the seal on the battery is not intended to be waterproof
●Do not throw in fire or otherwise dispose improperly. Recycle the battery at a facility that accepts
lithium battery
Last Revised 02/11/2020
Instructions for Use
Charging
1. Only use 14.5V, LiFePO4 compatible chargers to charge the battery. The recommended
charging current is 1A-4A.
2. It be charged through the charge & discharge terminal.
3. Fully charge the battery before first use. This depends on the output of the charger but is
typically between 3-10 hours.
4. If your battery came with a Tobattery charger, the red LED light means the battery is under
constant current (CC) charging and green LED means constant voltage (CV) charging.
Always charge for at least 5 hours to ensure full capacity.
5. LiFePO4 does not suffer “memory effect” so please keep the battery fully charged for daily
use. Cell balancing only occurs when the battery is fully charged (top-end balancing).
6. Do not charge the battery in temperatures below 0°C. This can cause damage to the cells.
Discharging
1. Make sure your load accepts 12V nominal voltage.
2. Ensure the connection between the battery and the load can handle the current draw.
Please consult references for the appropriate wire type.
3. The maximum continuous discharge current is 15A.
4. The battery outputs a steady voltage around 12.8V until very little capacity remain, do NOT
rely on voltage as an indicator of remaining capacity.
Series and Parallel Connection
We do not recommend using our LiFePO4 batteries in series or parallel connection if a single battery
of equivalent size can be used instead. The PCM/BMS built into each battery is intended only for
operation with a single battery and we do not guarantee the operability of multiple batteries in series
or parallel configuration. Please take the information below into consideration if you must use a
series or parallel configuration.
Series: The battery design can be operated in series configuration. A maximum of 2
batteries of the same specifications can be connected in series, and the total operating
voltage must not exceed 24V.
Parallel: Only connect batteries with equal state of charge in parallel. Also, measure the
internal resistance of each battery and only use batteries with closely matched internal
resistance. It is highly recommended that resistors be used to achieve equal internal
resistance among multiple batteries. It is also highly recommended to add fuse(s) to the
circuit for safety reasons.
Please keep in mind a series or parallel connection can fail with a number of consequences, from
early cut off to possibly a fire. Always exercise caution and observe closely at all times. The customer
assumes all responsibility in the event of a series or parallel connection or connections.
Maintenance and Storage
The battery requires no manual maintenance due to the included PCM/BMS. However, please
follow the below guideline for best life cycle.
1. Even though the LiFePO4 chemistry is relatively stable, protect the battery from shocks and
drops to prevent internal short circuit.
2. For long term storage, fully charge the battery and then discharge to 50% of the full capacity.
Do NOT leave the battery unattended for more than 6 months.
3. For the best life cycle, avoid using the battery in extreme temperatures and avoid highly
variable pulsing loads.

Typical wiring diagram
Troubleshooting
Since the battery can be used in many different configurations and equipment, we cannot provide a
general troubleshooting guide. Please contact us so a technician can provide you with individualized
support. Because the battery is not maintainable, you cannot disassemble the battery at any time.
Once the battery swells and smokes, stop using it immediately and move it to a safe place to
prevent possible fires and explosions that could cause injury or death and property loss.
Warranty
Please see the included warranty pamphlet for warranty information. You can also check www.tobattery.com for
more information.
Contact Us
Mail: ToBattery
1289 Fordham Blvd. Suite 116
Chapel Hill, NC 27514
E-mail: [e-mail]
Phone: [phone]
LFP1208AP
LiFePO4 Battery
User Manual
BATTERY
CHARGER
LOAD
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Note: The charging terminal of this battery is internally connected to the
discharging terminal