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Lithium Polymer Battery Cell

Lithium Ion Cell 105556 3.7v 4000mAh 14.8wh Rechargeable Lithium Ion Polymer Battery

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Lithium Ion Cell 105556 3.7v 4000mAh 14.8wh Rechargeable Lithium Ion Polymer Battery

Brand Name:	RESKY
Model Number:	LP105556
MOQ:	100pcs
Price:	Negotiable
Packaging Details:	Paper box
Payment Terms:	Western Union,T/T

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

CE, RoHS, MSDS, Un38.3

Document:

Working Voltage:

Discharge Rate:

Low Discharge Rate

Electrolyte:

Li(Nicomn)O2

Nominal Capacity:

4000mAh

Weight:

Cycle Life:

500cycles

Warranty:

12months

Shipping:

UPS, DHL, FedEx, TNT, By Air, By Sea, Special Line

Specification:

10*55*56mm

HS Code:

8507600090

Supply Ability:

30000pcs/day

Highlight:

105556 Lithium Ion Cell

4000mAh Lithium Ion Cell

14.8wh Lithium Ion Cell

Product Description

Product Description

Lithium Ion Cell 105556 3.7v 4000mAh 14.8wh Rechargeable Lithium Ion Polymer Battery

NO.	Items	Specifications
1	batteries	3.7V 4000mah lipo battery
2	Charge voltage	4.2V
3	Nominal voltage	3.7V
4	Nominal capacity	4000mAh 0.2C Discharge
5	Charge current	Standard Charging:0.2C Rapid charge: 1.0C
6	Standard Charging method	0.5C CC(constant current)charge to 4.2V, then CV(constant voltage 4.2V)charge till charge current decline to ≤0.05C
7	Charging time	Standard Charging:2.75hours(Ref.) Rapid charge: 2hours(Ref.)
8	Max.charge current	0.5C
9	Max.discharge current	1.0C
10	Discharge cut-off voltage	2.5V0.25V(0.2C)
11	Operating temperature	Charging: 0 °C ~45 °C Discharging:0 °C ~45 °C
12	Storage temperature	-10°C~ +45 °C
13	Dimension	Length:56±0.5mm (not including tabs) Width:55±0.5mm Thickness:10±0.2mm
14	Drop Test	The cell is to be dropped from a height of meter twice onto concrete ground. No fire, no leakage
15	cycle time	≥800times

The differences for lithium polymer battery, li-ion battery, lifepo4 battery:

Safety:

Li-Po:

Safer than liquid Li-ion due to solid/polymer electrolyte (reduced risk of leakage).

Vulnerable to swelling if overcharged; requires protective circuits.

Cylindrical Li-ion:

Liquid electrolyte poses a higher risk of thermal runaway or explosion under abuse (e.g., overheating, short circuits).

Metal casing provides mechanical protection but traps heat.

LiFePO₄:

Best thermal stability (high decomposition temperature, ~510°C vs. ~200°C for NMC).

Lowest risk of fire/explosion; no cobalt/nickel toxicity.

Cycle Life

Li-Po: 300–500 cycles (depends on depth of discharge; shorter with frequent full discharges).

Cylindrical Li-ion: 500–1,000 cycles (longer with NCA/NMC chemistries in EVs).

LiFePO₄: 2,000–5,000+ cycles (longest lifespan, ideal for frequent charging/discharging).

Temperature Performance:

Li-Po: Operates well in moderate temperatures (0–60°C); sensitive to extreme cold/heat.

Cylindrical Li-ion: Similar to Li-Po but slightly better high-temperature tolerance in metal casings.

LiFePO₄: Performs best in wide temperature ranges (−20°C to 60°C), with minimal capacity loss in cold climates.

Weight & Design:

Li-Po: Lightest and most flexible; used in devices requiring custom shapes (wearables, thin gadgets).

Cylindrical Li-ion: Rigid and heavier per capacity; standardized sizes (18650) enable easy integration into large packs (e.g., laptops, EVs).

LiFePO₄: Slightly heavier than Li-Po but lighter than some cylindrical Li-ion in pouch form; less design flexibility than Li-Po.

Cost:

Li-Po: Moderate to high (due to cobalt/nickel content and custom manufacturing).

Cylindrical Li-ion: High for premium cells (e.g., NCA) but cost-effective at scale (common in EVs).

LiFePO₄: Lowest cost (cobalt/nickel-free materials, simpler manufacturing; ideal for large-scale energy storage).

Typical Applications:

Li-Po:

Portable electronics (smartphones, tablets, wearables), drones, RC toys, and thin devices needing flexible power.

Cylindrical Li-ion:

Electric vehicles (Tesla’s 21700 cells), laptops, power tools, and large energy storage systems (due to standardized sizes and high energy density).

LiFePO₄:

Electric buses, e-bikes, solar/wind energy storage, backup power, and applications prioritizing safety and long life (e.g., marine, grid storage).

Pictures:

Lithium Ion Cell 105556 3.7v 4000mAh 14.8wh Rechargeable Lithium Ion Polymer Battery 0

Tags:

Lipo Batteries

Lithium Polymer Battery Pack

Li-Polymer Batteries

Products Details

Home > Products >

Lithium Polymer Battery Cell

Lithium Ion Cell 105556 3.7v 4000mAh 14.8wh Rechargeable Lithium Ion Polymer Battery

All Category

Lithium Polymer Battery Cell

RC Lithium Battery

Li-Ion Battery Pack

Lithium Polymer Battery Pack

Heated Lithium Battery

Electric Bike Battery

RC Balance Charger

Rechargeable Battery Charger

RC Accessories

Lithium Ion Cell 105556 3.7v 4000mAh 14.8wh Rechargeable Lithium Ion Polymer Battery

Brand Name:	RESKY
Model Number:	LP105556
MOQ:	100pcs
Price:	Negotiable
Packaging Details:	Paper box
Payment Terms:	Western Union,T/T

Detail Information

Product Description

Detail Information

Place of Origin:

China

Brand Name:

RESKY

Certification:

CE, RoHS, MSDS, Un38.3

Model Number:

LP105556

Document:

LP105556 3.7V 4000mAh with ...25.pdf

Working Voltage:

3.7V

Discharge Rate:

Low Discharge Rate

Electrolyte:

Li(Nicomn)O2

Nominal Capacity:

4000mAh

Weight:

43G

Cycle Life:

500cycles

Warranty:

12months

Shipping:

UPS, DHL, FedEx, TNT, By Air, By Sea, Special Line

Specification:

10*55*56mm

HS Code:

8507600090

Minimum Order Quantity:

100pcs

Price:

Negotiable

Packaging Details:

Paper box

Delivery Time:

7-10days

Payment Terms:

Western Union,T/T

Supply Ability:

30000pcs/day

Highlight:

105556 Lithium Ion Cell

4000mAh Lithium Ion Cell

14.8wh Lithium Ion Cell

Product Description

Product Description

Lithium Ion Cell 105556 3.7v 4000mAh 14.8wh Rechargeable Lithium Ion Polymer Battery

NO.	Items	Specifications
1	batteries	3.7V 4000mah lipo battery
2	Charge voltage	4.2V
3	Nominal voltage	3.7V
4	Nominal capacity	4000mAh 0.2C Discharge
5	Charge current	Standard Charging:0.2C Rapid charge: 1.0C
6	Standard Charging method	0.5C CC(constant current)charge to 4.2V, then CV(constant voltage 4.2V)charge till charge current decline to ≤0.05C
7	Charging time	Standard Charging:2.75hours(Ref.) Rapid charge: 2hours(Ref.)
8	Max.charge current	0.5C
9	Max.discharge current	1.0C
10	Discharge cut-off voltage	2.5V0.25V(0.2C)
11	Operating temperature	Charging: 0 °C ~45 °C Discharging:0 °C ~45 °C
12	Storage temperature	-10°C~ +45 °C
13	Dimension	Length:56±0.5mm (not including tabs) Width:55±0.5mm Thickness:10±0.2mm
14	Drop Test	The cell is to be dropped from a height of meter twice onto concrete ground. No fire, no leakage
15	cycle time	≥800times

The differences for lithium polymer battery, li-ion battery, lifepo4 battery:

Safety:

Li-Po:

Safer than liquid Li-ion due to solid/polymer electrolyte (reduced risk of leakage).

Vulnerable to swelling if overcharged; requires protective circuits.

Cylindrical Li-ion:

Liquid electrolyte poses a higher risk of thermal runaway or explosion under abuse (e.g., overheating, short circuits).

Metal casing provides mechanical protection but traps heat.

LiFePO₄:

Best thermal stability (high decomposition temperature, ~510°C vs. ~200°C for NMC).

Lowest risk of fire/explosion; no cobalt/nickel toxicity.

Cycle Life

Li-Po: 300–500 cycles (depends on depth of discharge; shorter with frequent full discharges).

Cylindrical Li-ion: 500–1,000 cycles (longer with NCA/NMC chemistries in EVs).

LiFePO₄: 2,000–5,000+ cycles (longest lifespan, ideal for frequent charging/discharging).

Temperature Performance:

Li-Po: Operates well in moderate temperatures (0–60°C); sensitive to extreme cold/heat.

Cylindrical Li-ion: Similar to Li-Po but slightly better high-temperature tolerance in metal casings.

LiFePO₄: Performs best in wide temperature ranges (−20°C to 60°C), with minimal capacity loss in cold climates.

Weight & Design:

Li-Po: Lightest and most flexible; used in devices requiring custom shapes (wearables, thin gadgets).

Cylindrical Li-ion: Rigid and heavier per capacity; standardized sizes (18650) enable easy integration into large packs (e.g., laptops, EVs).

LiFePO₄: Slightly heavier than Li-Po but lighter than some cylindrical Li-ion in pouch form; less design flexibility than Li-Po.

Cost:

Li-Po: Moderate to high (due to cobalt/nickel content and custom manufacturing).

Cylindrical Li-ion: High for premium cells (e.g., NCA) but cost-effective at scale (common in EVs).

LiFePO₄: Lowest cost (cobalt/nickel-free materials, simpler manufacturing; ideal for large-scale energy storage).

Typical Applications:

Li-Po:

Portable electronics (smartphones, tablets, wearables), drones, RC toys, and thin devices needing flexible power.

Cylindrical Li-ion:

Electric vehicles (Tesla’s 21700 cells), laptops, power tools, and large energy storage systems (due to standardized sizes and high energy density).

LiFePO₄:

Electric buses, e-bikes, solar/wind energy storage, backup power, and applications prioritizing safety and long life (e.g., marine, grid storage).

Pictures:

Lithium Ion Cell 105556 3.7v 4000mAh 14.8wh Rechargeable Lithium Ion Polymer Battery 0

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