Model: HX-3S-03Overcharge voltage range: 4.25-4.35v +/- 0.05vOver-discharge voltage range: 2.3-3.0v +/- 0.05vUpper limit working current: 6-8AWorking temperature: -40---+50 CUpper limit instantaneous current: 9-10AStorage conditions: -40-- +80 CQuiescent current: less than 30uAEffective life: more than 30,000 hoursInternal resistance: less than 100m ohmShort circuit protection: protection, delay self-recovery.Charging voltage: 12.6V-13VColour: greenMaterial: plasticSize: 30 x 30 x 3mmPackage Contents:1 x 18650 Lithium Battery Protection BoardOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.