102535 3.7V 800mAh Lithium Polymer Battery

Additional information

Product number


Cell model


Battery specification


Nominal voltage


Nominal capacity


Charging voltage


Charging current


Discharging current


End-off voltage


Charging temperature


Discharging temperature






Application field

Smart Watch

Product Details

Lithium-ion Polymer Battery Description:

It is a 102535-800mAh minimal capacity. 0.2C5A standard discharge to 3.0V after 0.2C5A standard charge to 4.2V. Its energy density 415Wh/L.

Standard Charge(25±2℃): Constant current 0.2 C5A to 4.2V

Constant voltage 4.2V 0.02 C5A cut-off

Standard Discharge (25±2℃): Constant current 0.2 C5A 3.0V Cut-off

Max discharge current: 1.0 C5A

Operating temperature: Charging: 0°C ~ 9°C 0.2 C5A /4.2V,0.02 C5A cut-off

10°C~44°C 1.0 C5A /4.2V,0.02 C5A cut-off

45°C~50°C 0.5 C5A /4.2V,0.02 C5A cut-off

Discharge: -20°C ~ 60°C 1.0 C5A /3.0V

Storage (At 50% SOC and specified temp, recoverable capacity in % vs time.): 20±5℃ is the recommended storage temperature

-20℃~25℃, (12 months, ≥85%)
-20℃ ~35℃, (3 months, ≥85%)
-20℃ ~45℃, (1 month, ≥90%)
-20℃~60℃, (1 month, ≥80%)

Lithium-ion polymer batteries performance:

Minimal Capacity:

Testing Instruction: The discharge performance means the time which is measured with discharge current of 0.2C CC(constant current) with 3.0V cut-off voltage within 1 hour after full charge.

Requirements: ≥800mAh

Cycle Life:

Testing Instructions: ≥500 cycles, more than 80% at std charge/std discharge(25±2℃)≥500, 80% thickness expansion ratio≤8%.

Requirements: nominal capacity 800mAh

Storage characteristics:

Testing instruction: After the standard charge, store in 25℃ for 30 days after full charge; After the standard charge, store in 60℃ for 7 days after full charge.

Requirements: retention capacity rate 85%, restoration capacity rate 90%.

Temperature characteristics:

Testing instruction: After the standard charge, a cell is stored in an environment of specific temperature for 2 hours, and then discharged to cut-off voltage 3.0V with a constant current of 0.2 C5A.

Requirements: Capacity rate at -10℃≥60%; at 0℃≥×70%; at 45℃ ≥ 100%;

K value Test:

Testing instruction: 25 ℃ environment, constant current constant voltage charging 0.2 C5A to 3.92±0.1V cut-off current 0.02C5A,,the high temperature45℃ for 72h. The normal temperature 25℃ for 96h.

Requirements: Voltage drop 10mV or less

FAQ of lithium-ion polymer:

  • How long will customers receive samples?
    Generally 7~10 days. We will do capacity grading before delivering.
  • What’s the MOQ?
    We can accept small trial orders, such as 500pcs, 1K pcs
  • What’s the product warranty? When does it start?
    The period of warranty is one year from the date of shipment. HLC guarantees to give a replacement in case of a battery with defects proven due to the manufacturing process instead of the customer abuse and misuse.
  • Which protection does the battery have?
    It can protect against short-circuit, over-charge, over-discharge, and over-current.


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