Description: Features: brand new and high quality Adopt super capacitor to provide stable and reliable for protection. Protect battery from overcharge, overdischarge and short circuit. With balance function to prolong battery life. Gone through load and aging test for quality assurance. Small volume, easy to mount Specification: Maximum charge voltage: 3 V (monomer) Maximum charge current (A): unrestricted (this current is related to the discharge current of the super capacitor) Maximum discharge current (A): unrestricted (this current is related to with the discharge current of the super capacitor) Minimum discharge voltage: 0.1 V Monomer balance starting voltage: 2.65 V Voltage balance of the error start: + 0.25% Single balanced start presentation: red LED lamps Current balance monomer: less 1A for DC resistance: 8 for M Operating temperature range: -40 to 85 C Storage temperature range: -40 to 85 C 5 string: 360F, 400F, 500F, 650F, 700F Color: Green+Black Size: app. 231x36mm(9.09x1.42in) Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Capacitor Balance Board(other accessories demo in the picture is not included.)