CSB Battery EVX12520 12V 52Ah Valve Regulated Sealed Lead Acid Type
The EVX12520 model belongs to CSB's EVX series and is a 12V Valve Regulated Sealed Lead Acid battery. It utilizes AGM technology combined with a pure lead construction, with a nominal capacity of 52Ah (20hr). Suitable for electric mobility and deep cycle applications, it also meets the approval requirements of IEC 60254 and UL1989.
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Product Features
- Uses VRLA (Valve Regulated Lead Acid) technology
- AGM Absorbent Glass Mat design, maintenance-free, with up to 99% gas recombination efficiency
- Constructed with pure lead and proprietary formulation elements
- Developed for electric mobility and deep cycle applications
- Manufactured in accordance with IEC 60254-1:2005 and IEC60254-2:2008, UL1989 certified (MH14533)
Application Scenarios
- Power source for electric wheelchairs and mobility scooters
- Power source for electric scooters
- Power battery for electric assist bicycles
- Auxiliary power supply for RVs and recreational vehicles
- Battery configuration for golf carts and campus sightseeing vehicles
- Power supply for short-distance low-speed electric mobility devices
Product parameters
- Model：EVX12520
- Voltage：12 Vdc
- Nominal Capacity：52 Ah @20hr-rate
- Ah Capacity：50.72 (8-Hr 1.75 VPC @ 25°C)
- Ah Capacity：54.4 (20-Hr 1.75 VPC @ 25°C)
- Ah Capacity：49.76 (8-Hr 1.80 VPC @ 25°C)
- Max. Charge Current：15.60 A
- Max. Discharge Current：500 A
- Short Circuit Current：1391 A
- Internal Resistance：5.2 mΩ
- Terminal Type：B4 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：PP (UL 94-HB)
- Weight：17.87 / 39.39 kg / lb.
- Length (L)：228.0±2.5 / 8.98±0.10 mm / in
- Width (W)：138.4±1.5 / 5.45±0.06 mm / in
- Height (H)：219.3±2.5 / 8.63±0.10 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
The EVX series includes the CSB EVX12520 model, which is a 12V Valve Regulated Sealed Lead Acid battery. Absorbent Glass Mat (AGM) technology is employed, achieving a maximum gas recombination efficiency of 99%, combined with a pure lead construction and proprietary element design. Electric mobility and deep cycle applications are the target directions for this model, and its maintenance-free feature places it in the officially positioned durable deep cycle VRLA pure lead battery series.
In terms of capacity, at 25°C and 1.75 VPC, the nominal capacity of the EVX12520 is 52Ah (20hr-rate). Multiple capacity data are also listed in the documentation: 50.72Ah at 8-hour rate 1.75 VPC, 54.4Ah at 20-hour rate 1.75 VPC, and 49.76Ah at 8-hour rate 1.80 VPC. 15.60A is the maximum charging current the battery can withstand, the maximum discharge current reaches 500A, the short-circuit current is 1391A, and the internal resistance is 5.2 mΩ. The equalization voltage at 25°C is 14.4 to 15.0 Vdc/battery, while the float charge voltage is not provided in this documentation.
In terms of dimensions and construction, the EVX12520 has a length of 228.0±2.5mm, a width of 138.4±1.5mm, a height of 219.3±2.5mm, and a weight of 17.87kg. The B4 type is the terminal it uses, M6 bolts can be accepted, and the terminal torque has three representations: 51.7±10.3 Kgf·cm, 44.9±9.0 Lbf·in, or 5.1±1.0 N·m. PP is used as the housing material, and the flame retardant rating is UL 94-HB.
Regarding temperature and life, 25°C is the nominal operating temperature of the battery, the discharge temperature range is -15°C to 50°C, and the charging and storage temperature range is -15°C to 40°C. At 25°C, the design life is 400 cycles at 100%DOD, or 1800 cycles at 30%DOD. In terms of self-discharge, after 90 days of storage at 25°C, the capacity loss is less than 10%, and it can be stored for up to 6 months; it must be fully charged before use; if the storage temperature exceeds 25°C, it should be charged in advance.
The manufacturing basis is IEC 60254-1:2005 and IEC 60254-2:2008, and the EVX12520 has also obtained UL1989 approval (MH14533). These features make the battery suitable for electric mobility and deep cycle energy application scenarios, and in situations requiring cyclic charge and discharge, it can continuously provide stable 12V power support.
