Six Golden Rules for Choosing 18650 Lithium Batteries.

Six Golden Rules for Choosing 18650 Lithium Batteries.

1. Verification of certification system: Priority should be given to suppliers with international certification such as UL1642, UN38.3, MSDS, etc

2. Comparison of process parameters: Focus on winding alignment (should be ≤ 0.3mm) and electrolyte injection accuracy (± 0.05g)

3. Testing equipment configuration: High precision manufacturers should be equipped with American Arbin charge and discharge testing systems and German Dewesoft dynamic impedance analyzers

4. Environmental adaptability: -40 ℃ low-temperature discharge efficiency (high-quality products can reach over 65% of rated capacity)

5. Safety protection mechanism: Triple protection structure (CID current interruption device, PTC positive temperature coefficient element, safety relief valve)