Sodium-ion Battery

Cycle Life

-Test: 25℃, 0.5C standard charge & discharge, 12000 full cycles

-Criteria: Capacity retention ≥80% rated capacity

Rate Charge/ Rate Discharge

-Test: 6C high-rate charging / 6C high-rate discharging

-Criteria: Charging capacity ≥94% rated capacity;                                  Discharging capacity ≥96% rated capacity

High temperature performance (65 ℃)

-Test: Store sodium-ion battery at 65℃ for 24h, then full discharge

-Criteria: Discharge capacity ≥98% rated capacity

Room temperature storage (25 ℃)

-Test: Store at 25℃ for 28 days, test residual & recovery capacity

-Criteria: Residual capacity ≥90%; Recovery capacity ≥98%

Q: What's the main product in ZKJ Power?

A：Rechargeable battery. Sodium-ion,Li-ion, Lipo battery and power battery pack.

Q: What is overcharge?

A: 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.

Q: What is over discharge?

A: After charge, test the batteries' initial state. When the batteries are normal, discharge to 0V at 0.5C. Observe changes in battery appearance.

Q: What is over discharge?

A: After charge, test the batteries' initial state. When the batteries are normal, discharge to 0V at 0.5C. Observe changes in battery appearance.

Q: Do you have MOQ limit?

A: Yes, we have MOQ limit for mass production, but it depends on battery model. Please contact us for details.

Q: Do you have MOQ limit?

A: Yes, we have MOQ limit for mass production, but it depends on battery model. Please contact us for details.

Q: How about shipping and delivery time?

A: 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.

Q: What about after-sale service? 

A: We will offer you 1 year guarantee. If there are any problems, please inform us, we will offer you positive solutions.