Home / CSB Products / CSB EVX Deep Cycle Electric Mobility Battery

Product Features

  • Valve-regulated lead-acid type, also known as VRLA battery
  • Maintenance-free; uses AGM absorbent glass mat separator technology, with gas recombination efficiency of up to 99%
  • Pure lead-based construction with proprietary elements
  • Designed for deep-cycle applications and also suitable for electric mobility
  • Manufactured in accordance with IEC 60254-1:2005 / IEC60254-2:2008 and UL1989 recognized (MH14533)

Application Scenarios

  • Power batteries for electric wheelchairs and mobility scooters
  • Can serve as a power source for electric scooters
  • Power battery packs for electric power-assist bicycles
  • Auxiliary power batteries for recreational vehicles and motorhomes
  • Batteries for park sightseeing vehicles and golf carts
  • Power supply for short-distance low-speed electric mobility vehicles

Product parameters

  • Model：EVX12400
  • Voltage：12 Vdc
  • Nominal Capacity：40 Ah @20hr-rate
  • Ah Capacity：31.52 (8-Hr 1.75 VPC @ 25°C)
  • Ah Capacity：40.00 (20-Hr 1.75 VPC @ 25°C)
  • Ah Capacity：30.56 (8-Hr 1.80 VPC @ 25°C)
  • Max. Charge Current：12.00 A
  • Max. Discharge Current：400 A
  • Short Circuit Current：1082 A
  • Internal Resistance：8.2 mΩ
  • Terminal Type：I2 thread terminal to accept M6 bolt
  • Terminal Torque：51.7±10.3 Kgf·cm / 44.9±9.0 Lbf·in / 5.1±1.0 N·m
  • Container Material：ABS (UL 94-HB)
  • Weight：13.20 / 29.07 kg / lb.
  • Length (L)：197.0±2.0 / 7.76±0.08 mm / in
  • Width (W)：165.0±2.0 / 6.50±0.08 mm / in
  • Height (H)：170.4±2.0 / 6.71±0.08 mm / in
  • Design Life：400 cycles at 100% DOD (25°C); 1800 cycles at 30% DOD (25°C)
  • Equalizing Charging Voltage：14.4 - 15.0 Vdc/battery
  • Operating Temperature：discharge -15°C to 50°C; charge/storage -15°C to 40°C

Product details

Designed for electric mobility and cyclic energy storage applications, the CSB EVX12400 is part of the EVX series and is a 12V Top Terminal VRLA-AGM battery. This series focuses on durable deep cycling, using a valve-regulated sealed pure lead design with a proprietary formulation, making it suitable for deep cycle duty involving repeated charge and discharge. Structurally, the battery uses absorbed glass mat (AGM) separators and a valve-regulated sealed lead-acid system, with gas recombination efficiency up to 99%, requiring no routine maintenance. The case material is ABS and meets UL 94-HB. Terminal type is I2 and can be used with M6 bolts; tightening torque must be controlled at 51.7±10.3 Kgf·cm, 44.9±9.0 Lbf·in, or 5.1±1.0 N·m. Overall dimensions are 197.0±2.0 mm (L) × 165.0±2.0 mm (W) × 170.4±2.0 mm (H), and weight is 13.20 kg. Electrically and in terms of capacity, nominal voltage is 12 Vdc and nominal capacity is 40 Ah (1.75 VPC @25°C, 20-hour rate). At 25°C, with a 1.75 VPC cutoff, the 20-hour rate delivers 40.00 Ah and the 8-hour rate is 31.52 Ah; if the cutoff voltage is changed to 1.80 VPC, the 8-hour rate capacity is 30.56 Ah. Maximum charge current is 12.00 A, maximum discharge current is 400 A, short-circuit current is 1082 A, and internal resistance is 8.2 mΩ. For cycle performance, 400 cycles can be completed at 25°C and 100% depth of discharge, while 1800 cycles are achieved at 30% depth of discharge. Nominal operating temperature is 25°C; discharge is permitted from -15°C to 50°C, and charging and storage are permitted from -15°C to 40°C. At 25°C, equalization voltage is 14.4 to 15.0 Vdc/battery. In terms of self-discharge, after 90 days of storage at 25°C, remaining capacity is still greater than 90%, and the maximum storage period is 6 months; fully charge before use, and if storage temperature exceeds 25°C, recharge earlier. Manufacturing and approval references include IEC 60254-1:2005 and IEC 60254-2:2008, and it is UL1989 recognized (MH14533). Therefore, this product is suitable for electric mobility and cyclic energy storage, among other applications.

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