CSB EVH12390, 12V, 39Ah battery

The CSB EVH12390 valve-regulated lead-acid (VRLA) traction battery uses maintenance-free Absorbent Glass Mat (AGM) technology, which enables efficient gas recombination of up to 99%. The battery is made from pure lead and proprietary components. It is designed for e-mobility and deep-cycle applications. The design conforms to IEC 60254-1:2005 / IEC 60254-2:2008 standards and is certified to UL1989 (MH14533). The EVH series improves upon the EVX with better cycle life thanks to specially designed energy storage for e-mobility, such as electric scooters, recreational vehicles and many others. The EVH is specifically designed for efficient discharge in cyclic applications. A special proprietary formula using 99.99% pure lead ingot in the production of lead oxide, lead plate grids and other lead components, all to ensure optimal high-rate performance. Optional flame retardant ABS case construction is available. It meets the special provisions of IATA/ICAO A67 for air transport, is classified under MG Amendment 27 as non-hazardous material for water transport, and is recognised by the DOT as "dry charge" 49 CFR 171–189 for surface transport.

Technical specification:
Nominal capacity (1.75V/cell at 25°C): 39Ah (20-hour rate)
Capacity (8h, 1.75V/cell at 25°C): 35.68Ah
Capacity (20h, 1.75V/cell at 25°C): 39.20Ah
Capacity (8h, 1.80V/cell at 25°C): 35.20Ah
Maximum charging current: 11.70A
Maximum discharge current: 400A
Short-circuit current: 987.5A
Internal resistance: approx. 8.9mΩ
Terminal type: B5 (for M6 bolt and nut)
Terminal tightening torque: 5.10±1.0N·m
Case material: ABS (UL 94-HB)
Weight: approx. 11.50kg
Lifespan: 400 cycles at 100% DOD (25°C), 1800 cycles at 30% DOD (25°C) 
Operating temperature: nominal: 25°C, discharge: −15 to +50°C, charge / storage: -15 to +40°C
Float charging voltage: 14.4–15.0V / battery (25°C)
Self-discharge: less than 10% after 90 days; can be stored for up to 6 months at 25°C (must be fully recharged before use)