How to correctly select a suitable lithium battery?
Before Placing an Order
Confirm the voltage and current specifications of the battery you need.
Check the battery dimensions.
Verify the plug type; incompatible terminals cannot be used interchangeably. For custom plug, please contact us: sales@urbattery.com.
Before Use
Correct polarity is essential (red = positive [+], black = negative [–]). Do not reverse or mix different batteries.
Use a compatible charger only. Charge in a dry, cool place. Avoid overcharging or overheating.
Environmental limits: Do not use in temperatures above 45°C or below 0°C, or in humid/dusty areas.
Do not overload: Devices must not exceed the battery’s maximum discharge current.
Battery Maintenance
If unused for long periods, fully charge and discharge every 1–2 months.
Before storage, charge to 40%–60%, store in a dry, cool place away from metal to prevent short circuits.
Regularly inspect the battery. Stop using it immediately if swollen, leaking, or otherwise damaged.
Warnings
Do not pierce, bend, crush, drop, short-circuit, or reverse polarity at any time.
Do not discharge near flammable or explosive items (e.g., sofas, bedding, lighters, hot surfaces, cars under sun exposure).
Never disassemble, burn, immerse the battery in liquids (e.g., water, drinks). Do not replace the protection circuit or use damaged batteries (e.g., leaking, punctured, deformed).
Estimated delivery in 7–12 business days
Free standard shipping on orders over €40
1-Year Warranty & 60 Days Returns
True Capacity (Honest Rating): Verified under a standard test procedure—CC/CV charge to full, then 0.2C constant discharge to the specified cut-off voltage at 25 °C. No inflated numbers.
A-grade 18650 Cells, Matched & Balanced: Only A-grade new cells are used. Packs are grouped after dual sorting by capacity and internal resistance (Low IR) to improve consistency and reduce voltage sag.
Low Internal Resistance Design: Low-IR cells plus proper nickel strip layout and wiring deliver more stable output under load with less heat—better efficiency and steadier runtime.
Professional Build & PCM Protection: 100% functional testing before shipment. The built-in PCM provides over-charge, over-discharge, over-current and short-circuit protection for safer use.
Reliable Cycle Life (up to ~800 cycles): Under standard conditions (about 0.5C charge, 0.2C discharge, 25 °C, rated cut-offs), typically up to ~800 cycles to ~80% of rated capacity.*
* Actual results depend on discharge current, ambient temperature, cut-off settings and usage habits. Use within rated limits for best longevity.