Description: This battery equalizer can be connected in series or in parallel for a long time in the battery, so as to automatically maintain the balance of the battery state to keep batteries in heath condition and extend battery service life. Features: [Balance Charge & Discharge]Special battery balancer for the solar system can balance charge and discharge. [Reduce Battery Replacement]Battery balancer extends battery life and reduces battery replacement. [Useful]The battery balancer makes the series-parallel battery get a stable voltage when charging. [Widely Applicable]Suitable for use in autos, boats, golf carts, motorcycles, solar, trucks, RV's, electric forklift batteries, etc. [Multiple Protections]Reverse polarity protection, low voltage disconnect to keep batteries in heath condition and extend battery service life. Specifications: Voltage Specifications: 12V(Type 1); 48V(Type 2) Color: Black Material: ABS Standby Current: <1.8A Compensate Current: 0-10A Temperature: -7.6 to 131°F Item Size: 2.75*2.75*0.86 Inch(Type 1);2.44*4.88*1.06 Inch(Type 2) Package Size: 12*11*4cm/4.72*4.33*1.57inch(Type 1);18*10*6cm/7.08*3.93*2.36inch(Type 2) Package Weight: 220g/0.48lb(Type 1);300g/0.66lb(Type 2) Package List: 1 * Battery Voltage Balancer 1 * Instruction