12V 4000mAh Rechargeable Li ion Battery Pack


● TLH-3S2P-1204:Suitable for use with a GPS tracker and other electronics.

● Function: 18650 2000mAh cell type,56x38x70(mm), nominal capacity and voltage of 4AH, and 11.1v and a charge temperature range of 0-45°C.

● Feature: The TLH-3S2P battery pack features a PCB built-in current sensor and a Molex power connector; a flexible and reliable power source.

● Charge time: This battery pack charges fully within 1-2 hours at standard charge current (2A), which is relatively a short charge time.

● Warranty: It has a life cycle of over 600 full charges, before its functionality drops and comes with 2 years warranty, after shipment.


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Cell Type18650 2000mAh cellCharge ModeCC-CV
Battery ModelTLH-3S2P-1204Standard Charge Current (A)2A
Nominal Capacity (AH)4AhCharge Time under Standard Charge Current1-2 hours
Nominal Voltage (V)11.1VCharge Temperature Range0-45°C
Battery Size56x38x70(mmDischarge Temperature Range-20-60°C
Discharge Cutoff Voltage (V)8.4VBattery Net Weight (include BMS) (kg)280g
Charge Cutoff Voltage (V)12.6VCycles Life>600 times
Maximum Discharge Current (A)2AWarranty12 months
Continuous working Current (A)1A


Q: How can we get a custom battery pack solution?
Q: What is your production process?
Q: What is the development time for custom battery packs solution from Zero to One?
Q: What kind of certificates can you supports?
A: ISO.9001/CE/UL/IEC62133/MSDS/Rohs/UN38.3/UKCA certificate.
Q: What is your sales service?
● You can contract after-sales service agents in the UK, US, and Germany.
● All battery packs produced by TLH are covered by international insurance.
● When you suffer the defective batteries, do not worry. Please send us your issues. Our engineering team will send you the solution.
● We will provide one year warranty and if you are a VIP customer, you can get a prolonged 18-month warranty.
Q: Do you have any successful custom battery pack solutions for other customers?
A: For more information, please Contact Us.