CSB EVX12520 12V 52Ah Valve-Regulated Sealed Lead-Acid Battery
The CSB EVX12520 is an EVX series 12V valve-regulated sealed lead-acid battery featuring AGM technology and pure lead construction, with a nominal capacity of 52Ah (20hr), suitable for e-mobility and deep-cycle applications, and compliant with IEC 60254 and UL1989 recognition.
Taobao store
WeChat procurement
Product Features
- Valve Regulated Lead Acid (VRLA) Battery
- Maintenance-Free, Absorbent Glass Mat (AGM) Technology for Efficient Gas Recombination of up to 99%
- Pure Lead Construction and Proprietary Elements
- Designed for E-mobility or deep cycling applications
- Built in Accordance with IEC 60254-1:2005 / IEC60254- 2:2008 and UL1989 Recognized (MH14533)
Application Scenarios
- Electric wheelchair and mobility scooter batteries
- Electric scooter traction power
- E-bike traction batteries
- Recreational vehicle auxiliary power
- Golf cart and sightseeing shuttle batteries
- Low-speed short-trip mobility vehicle power
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 CSB EVX12520 belongs to the EVX series and is a 12V valve-regulated sealed lead-acid battery using absorbed glass mat (AGM) technology, achieving up to 99% gas recombination efficiency, with pure lead construction and a proprietary element design. This model targets e-mobility and deep-cycle applications, is a maintenance-free battery, and is officially positioned as a durable deep-cycle VRLA pure lead battery series.
In terms of capacity, the EVX12520 has a nominal capacity of 52Ah (20hr-rate) at 25°C at 1.75 VPC. The data also provides multiple capacity figures: 50.72Ah at the 8-hour rate at 1.75 VPC, 54.4Ah at the 20-hour rate at 1.75 VPC, and 49.76Ah at the 8-hour rate at 1.80 VPC. The battery's maximum charge current is 15.60A, maximum discharge current is 500A, short-circuit current is 1391A, and internal resistance is 5.2 mΩ. The equalizing charge voltage is 14.4 to 15.0 Vdc/battery (25°C); the data does not provide a float charge voltage.
In terms of structure and dimensions, the EVX12520 is 228.0±2.5mm long, 138.4±1.5mm wide, and 219.3±2.5mm high, with a weight of 17.87kg. The terminal is B4 type, accepts M6 bolts, and the terminal torque is 51.7±10.3 Kgf·cm, 44.9±9.0 Lbf·in, or 5.1±1.0 N·m. The case material is PP, with a flame retardant rating of UL 94-HB.
In terms of temperature and life, the battery's nominal operating temperature is 25°C, the discharge temperature range is -15°C to 50°C, and the charge and storage temperature range is -15°C to 40°C. The design life is 400 cycles at 100%DOD at 25°C, or 1800 cycles at 30%DOD. Regarding self-discharge, capacity loss is less than 10% after 90 days of storage at 25°C, storage is possible for up to 6 months, a full charge is required before use, and if the storage temperature is above 25°C, charging should be done sooner.
The EVX12520 is manufactured in accordance with IEC 60254-1:2005 and IEC 60254-2:2008, and is UL1989 recognized (MH14533). These features make it suitable for e-mobility and deep-cycle energy application scenarios, providing stable 12V power support in situations requiring cyclic charge and discharge.
