CSB EVX12520 12V 52Ah Valve-Regulated Sealed Lead-Acid Battery
The 12V valve-regulated sealed lead-acid battery EVX12520 belongs to CSB's EVX series. It has a nominal capacity of 52Ah (20hr) and uses AGM technology and a pure lead construction. It is suitable for electric mobility and deep cycle applications and is approved to IEC 60254 and UL1989.
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Product Features
- Valve-regulated lead-acid (VRLA) design
- Maintenance-free with absorbed glass mat (AGM) technology and up to 99% gas recombination efficiency
- Pure lead construction with proprietary elements
- Purpose-built for electric mobility and deep cycle applications
- Manufactured to IEC 60254-1:2005 / IEC60254-2:2008 standards and UL1989 certified (MH14533)
Application Scenarios
- Power batteries for electric wheelchairs and mobility scooters
- Power source for electric scooters
- Power batteries for electric assist bicycles
- Auxiliary power for RVs and recreational vehicles
- Batteries for golf carts and sightseeing shuttles
- Power source for short-distance low-speed electric mobility vehicles
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 EVX12520 is a 12V valve-regulated sealed lead-acid battery, or VRLA battery, in CSB's EVX series. It uses absorbed glass mat (AGM) technology with a maximum gas recombination efficiency of 99%, and features a pure lead construction with proprietary additives. This model is officially positioned as a maintenance-free battery in the durable deep cycle VRLA pure lead battery series, primarily targeting electric mobility and deep cycle applications.
Regarding capacity, at 25°C and 1.75 VPC, the EVX12520 has a nominal capacity of 52Ah (20hr-rate). Several additional capacity figures are available for reference: 50.72Ah at the 8-hour rate and 1.75 VPC; 54.4Ah at the 20-hour rate and 1.75 VPC; and 49.76Ah at the 8-hour rate and 1.80 VPC. The battery can withstand a maximum charge current of 15.60A, a maximum discharge current of 500A, a short-circuit current of 1391A, and an internal resistance of 5.2 mΩ. At 25°C, the equalization voltage range is 14.4 to 15.0 Vdc/battery, while the float voltage is not given in the data.
In terms of dimensions, the EVX12520 is 228.0±2.5mm long, 138.4±1.5mm wide, and 219.3±2.5mm high, and weighs 17.87kg. It uses B4 type terminals that can be used with M6 bolts, with a terminal torque of 51.7±10.3 Kgf·cm, 44.9±9.0 Lbf·in, or 5.1±1.0 N·m. The case is made of PP material and meets UL 94-HB flame retardancy.
In terms of temperature and life, the battery has a nominal operating temperature of 25°C, a discharge temperature range of -15°C to 50°C, and a charge and storage temperature range of -15°C to 40°C. Its design life at 25°C is up to 400 cycles at 100%DOD, or up to 1800 cycles at 30%DOD. In terms of self-discharge, after 90 days of storage at 25°C, capacity loss is less than 10%, and it can be stored for up to 6 months; it must be fully charged before use, and if the storage temperature exceeds 25°C, it needs to be charged earlier.
The EVX12520 is manufactured to IEC 60254-1:2005 and IEC 60254-2:2008 standards and has obtained UL1989 approval (MH14533). These features make the battery suitable for electric mobility and deep cycle energy applications, providing stable 12V power in situations requiring repeated charge and discharge.
