Rechargeable battery. Li-ion, Lipo, lifepo4 battery and custom battery pack.
After charge, tested the batteries' initial state and capacity. Charge to 10.0V at 3C current, then charge to 0.01C at CV mode. Observe changes in battery appearance.
After charge, test the batteries' initial state. When the batteries are normal, discharge to 0V at 0.5C. Observe changes in battery appearance.
Yes, we accept sample order to test and check quality. Batteries or li ion battery packs can be made as require.
It depends on battery model and inventory, we have MOQ limit for new production, and no limited if we have that model in stock. If you want to order lithium batteries, please contact us for details.
Samples will take 5-7 days. New production will take 25-30 days. Common used models are usually with stock, delivery can be arranged within 7days.
Generally, battery will be shipped via Express, such as DHL, TNT, FedEx and UPS, delivery time is 3-5 business days. Or DDP service, delivery time is 11-15 business days. Airline and sea shipping also available.
We will offer you 1 year guarantee. If there are any problems, please inform us, we will offer you positive solutions.
(1)Battery test environment:
Temperature: 23±2℃; Relative humidity: 60± 20% RH; Atmospheric pressure: 86~106 KPa.
(2)Measuring instrumentation requirements:
Voltage instrumentation requirements--Measuring the voltage meter accuracy no less than 0.5 magnitude;
Current instrumentation requirements--Measuring the current meter accuracy no less than 0.5 magnitude;
Time instrumentation requirements--Measuring the time meter accuracy no less than 0.1%;
Temperature instrumentation requirements--Measuring the temperature meter accuracy no less than 0.5 ℃;
Impedance instrumentation requirements--Measuring impedance should by sinusoidal alternating (1 KHZ) test.
Of course. We will design and build your custom lithium battery packs according to your special requests.
The capacity means the discharge capacity of the cell, which is measured with discharge current of 0.2C with 3.0V cut-off voltage after the standard charge.
The capacity means the average discharge capacity of the cell, which is measured with discharge current of 0.2C with 3.0V cut-off voltage after the standard charge at 23±2℃ environment temperature, unit: mAh.
After full charging, storing the battery 28 days with 20 ± 5°C condition, and then staying 1 hours with discharge current of 0.2C till 3.0V cut-off voltage.
Charging the cell initially with constant current at 0.2C and then with constant voltage at 4.2V till charge current declines to 0.02C.