11.1V 802540 3S 800mAh Lithium Polymer Battery

Additional information

Rated Voltage


Rated Capacity


Battery Size


Charge Temperature


Discharge Temperature



electric tools

Lithium Battery Process Work Flow

We are a professional lithium battery factory in China. Now we briefly introduce how to produce lithium batteries. It starts from cathode & anode mixing, coating, baking, calendering, automatic slitting & cutting, winding, top & side sealing, electrolyte injection, pressing formation, forming, capacity grading, OCV1 & OVC2, cell to PCB, insulation and shipping. Welcome to contact and ask for the workflow table list.

Product Details

Product number: HLC802540
Cell model:802540/3.7V/800mAh
Battery specification: 802540-3S1P/11.1V/800mAh(lithium battery)
Nominal voltage: 11.1V
Nominal capacity: 800mAh
Charging voltage: 12.8V
Charging current: ≤800mA
Discharging current: ≤800mA
Instant discharging current: 1600mA
End-off voltage: 9V
Internal resistance: ≤600mΩ
Battery weight: 48g
Product dimension: 27*28*45mm
Charging temperature:0~45℃
Discharging temperature: -20~60℃
Storage temperature: -20~45℃
Battery case: Aluminum plastic pouch cell
Application field: electric tools

Polymer Battery Features:

The specific energy is large. The actual specific energy that can be achieved at present is 100-115Wh/kg and 240-253Wh/L

The cycle life is long, generally up to 500 times.

Good safety performance, no pollution, no memory effect. As the predecessor of Li-ion, the lithium battery is prone to short circuit of dendrites due to metal lithium, which reduces its application fields: Li-ion does not contain cadmium, lead, mercury, and other elements that pollute the environment.

The self-discharge is small, and the self-discharge rate of Li-ion fully charged at room temperature for one year is about 10%

Lithium Battery Test Condition & Requirements:

Test environment
Unless otherwise specified, this specification item test should be performed in the test under the condition of normal atmospheric pressure.

  • The temperature
  • Relative humidity
  • Atmospheric pressure
    86K Pa~106KPa

Measuring instrument and equipment requirements

  • Measure the voltage meter accuracy should be not less than 0.5 on the Richter scale, Ω resistance shall be not less than 10 k/V
  • Measure the current meter accuracy shall be not less than 0.5
  • The instrument accuracy measuring time shall be not less than + / – 0.1%
  • Measuring temperature meter accuracy shall be not less than plus or minus + / –
  • Impedance instrumentation requirements: measuring impedance should by sinusoidal alternating(1KHZ) test
  • Measuring instrument accuracy is not lower than 0.02 mm size
  • Weighing the quality of the instruments is not less than 0.1g

Standard charging mode

Standard temperature 25±3℃ Charging battery consists of charging at a constant current rate of 0.2 C5A until the battery voltage reaches 4.2V .then battery be charged at a constant voltage of 4.2V while tapering the charge current. Terminal charge until the charging current drops to 0.02C. Anyway, the total charge time for one cycle is not more than 8 hours.

Standard Discharge mode

Standard temperature 25±3℃ discharge to the cut-off voltage with 0.2 C5A current.

Initial Capacity

The standard charge mode for charging, then the standard discharge mode to discharge, measured for the first time the battery capacity is the initial capacity.


  1. What’s the product warranty time?
    The period of warranty is one year from the date of shipment. HLC guarantees to give a replacement in case of battery with defects proven due to the manufacturing process instead of the customer abuse and misuse.
  2. How long will customers receive samples?
    Generally, it requires 7~15 days for sampling. We will do capacity grading before adding PCM. After soldering PCM, we will do a whole performance test before delivering out.
  3. What does the safety performance testing include?
    They include over-charge protection, over-discharge protection, short-circuit protection, forced discharge, overcharge, vibration, short test, soak test, crush test, free fall.
  4. What are the lithium battery advantages?
    Small self-consumption, reasonable prices, safety & reliability, and the battery pack has a high cycle life and is in line with the value concepts of low carbon, energy-saving and environmental protection.

Ask For A Quick Quote

We will contact you within 1 working day, please pay attention to the email with the suffix “@hlcbattery.com”