14.4V 6000mAh Li-ion 21700 Battery

Our 14.4V 6000mAh 21700 battery pack is the perfect high-capacity replacement for standard 4S1P 18650 setups.

The original 4S1P 18650 design often falls short in continuous operation—our 4S1P 21700 6000mAh solution delivers extended power.

Key features：

Made with the highest 21700 6000mAh cells
Application: Outdoor camera backup system
Dimension: 23*89*75(mm)
Lightweight: 340g

14.4V 6000mAh Li-ion 21700 Battery Pack Parameters

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No.	Item	Parameter	Remark
1	Nominal Voltage	14.4V	3.6V/Cell
2	Nominal Capacity	6000mAh	@0.2C
3	Minimum Capacity	≥5850mAh
4	Initial Internal Impedance	≤200mΩ	AC 1KHZ
5	Standard Charge Voltage	16.8V	4.2V/Cell
6	Standard Charge Current	3A	0.5C
7	Max. Charge Current	6A	1C
8	Standard Discharge Current	8A
9	Max. Discharge Current	12A	/
10	Discharge Cut-off Voltage	10.8V	2.7V/Cell
11	Cycle Life	≥500 cycles	Retention: ≥70%
12	Charge Temperature	0°C~45°C	Standard Charge
13	Discharge Temperature	-20°C ~+75°C	Standard Discharge
14	Storage Temperature	-20°C~ +45°C	≤3 Months
14	Storage Temperature	-20°C~ +45°C	≤3 Months
15	Weight	About 340g	kg

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What is the highest capacity of 21700 cells in the market?

The highest capacity of 21700 cells is 6000mAh.

Does CMB produce 21700 cells directly ?

No, CMB is focusing on custom battery packs solutions.Our engineering team will source the suitable brands and model of 21700 to your battery pack design to ensure the optional performance.

What is the charging voltage range and recommended charging method?

Nominal charge voltage: 16.8V (4.2V per cell). We recommend using a CC/CV lithium-ion charger with proper over-voltage protection.

Does it have a built-in Battery Management System (BMS)? What protections are included?

Yes, it includes a BMS with overcharge, over-discharge, overcurrent, and short-circuit protection, plus optional temperature protection if required.

Does your 14.4V 6000mAh 21700 battery packs meet our devices?

Lithium-ion battery packs represent a critical and highly specialized component in power systems. Our design evaluation comprehensively assesses multiple key parameters: voltage stability, capacity optimization, discharge current capabilities, dimensional specifications, weight considerations, and operational environment adaptability.