The attribute of the lithium battery protection board: Model: HX - 3 s - FL10 - A charging voltage range: 4.25 + / - 0.05 v to 4.35 v Size: 53 * 17 * 4.0 mm discharge voltage range: 2.3 + / - 0.05 v to 3.0 v Maximum working current: 6-8 a working temperature: - 40 - + 50 ° Maximum instantaneous current: 10 to 13 a storage conditions: - 40 - + 80 ° Static electricity: less than 30 ua useful life: more than 30000 hours Resistance: less than 100 m Ω short circuit protection, can protect, delay the recovery. Charging voltage: 12.6 V - 13 V