Model	18650-4S2P
Nominal voltage	14.8V
Nominal capacity	4.4Ah
Size	customized
Max charge current	0.5C
Charging method	Constant current 1C to 16.8V,then charge with constant voltage 16.8V till charge current less than 0.01C
Max discharge current	1C
Discharge cut-off voltage	12V, the over-discharge detection voltage of PCM
Operating environment	Charging, 0°C ~ 45°C ; 65±20%RH; Discharging, -20°C~60°C ; 65±20%RH
Storage environment	-20°C~45°; 65±20%RH;
Lifespan (80% Prime Capacity)	>500times
Charging Attention	It is dangerous that charging with higher current or voltage than Product Specification may cause damage to the cell electrical, mechanical safety performance.

Features:

High Capacity:

The capacity of a single 18650 lithium-ion battery typically ranges from 1200mAh to 3600mAh, significantly higher than the average capacity of around 800mAh for general batteries.

When combined into a battery pack, the total capacity can easily exceed 5000mAh.

High Safety Performance:

18650 lithium-ion batteries are designed with high safety standards, featuring no explosion or combustion risks.

They are non-toxic and pollution-free, having passed RoHS certification.

Advanced safety features such as overcharge protection, over-discharge protection, and short-circuit protection enhance their overall safety.

Low Internal Resistance:

The internal resistance of 18650 lithium-ion batteries is relatively low, especially for polymer cells, which can further reduce self-discharge and extend standby time.

Pictures:

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