CSB EVX12120 12V 12Ah Valve-Regulated Sealed Lead-Acid Battery
As a 12V 12Ah valve-regulated sealed lead-acid battery, the CSB EVX12120 uses AGM technology and a pure lead construction, primarily targeting electric mobility and deep cycle applications. Its 20-hour rate nominal capacity is 12Ah, maximum charging current reaches 3.60A, and design cycle life at 100% DOD is 400 cycles.
Taobao store
WeChat procurement
Product Features
- Valve-regulated lead-acid (VRLA) design
- Absorbent glass mat (AGM) technology with up to 99% gas recombination efficiency and no routine maintenance required
- Pure lead construction with proprietary element formulation
- Engineered 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 scooters and wheelchairs
- Batteries for electric scooter power supply
- Power battery packs for e-bikes
- Auxiliary power source for recreational vehicles and RVs
- Batteries for golf carts and sightseeing shuttles
- Power source for low-speed, short-range electric mobility devices
Product parameters
- Model：EVX12120
- Voltage：12 Vdc
- Nominal Capacity：12 Ah @20hr-rate
- Ah Capacity：10.64 (8-Hr 1.75 VPC @ 25°C)
- Ah Capacity：12.00 (20-Hr 1.75 VPC @ 25°C)
- Ah Capacity：10.56 (8-Hr 1.80 VPC @ 25°C)
- Max. Charge Current：3.60 A
- Max. Discharge Current：180 A
- Short Circuit Current：464 A
- Internal Resistance：15.4 mΩ
- Terminal Type：F2 terminal (Faston Tab 250)
- Container Material：ABS (UL 94-HB)
- Weight：3.83 / 8.44 kg / lb.
- Length (L)：151.0±2.0 / 5.94±0.08 mm / in
- Width (W)：98.0±1.0 / 3.86±0.04 mm / in
- Height (H)：100.3±1.5 / 3.95±0.06 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
- Note：F1 terminal is available; Max Discharge Current = 150 A (5 sec.)
Product details
The EVX12120 is a product in CSB's EVX series, a 12V top-terminal valve-regulated sealed lead-acid battery. It uses absorbent glass mat (AGM) technology with gas recombination efficiency of up to 99%, combined with a pure lead construction and proprietary formulation. The series is positioned as a durable deep cycle VRLA pure lead battery line suited for electric mobility and cyclic energy storage applications, so this battery can handle usage patterns requiring frequent charge and discharge.
In terms of capacity, at 25°C and 1.75VPC, the EVX12120 has a 20-hour rate nominal capacity of 12Ah; the 8-hour rate capacity is 10.64Ah, or 10.56Ah at the 8-hour rate and 1.80VPC. For charging, the maximum current is 3.60A, and the equalization voltage range is 14.4 to 15.0Vdc (25°C). In addition, the internal resistance is 15.4mΩ, and the short-circuit current reaches 464A. These data can serve as a reference when matching charging equipment and systems.
In terms of construction, the battery dimensions are 151.0±2.0mm long, 98.0±1.0mm wide, and 100.3±1.5mm high, with a weight of approximately 3.83kg. The case uses ABS material with a flame retardant rating of UL 94-HB, and the terminal specification is F2 Faston Tab 250. The battery is maintenance-free, with a nominal normal operating temperature of 25°C, a discharge temperature range of -15°C to 50°C, and a charging and storage temperature range of -15°C to 40°C.
For cycle life, at 25°C, 400 cycles can be achieved at 100% depth of discharge, and 1800 cycles at 30% depth of discharge. Regarding self-discharge characteristics, when stored at 25°C for 90 days, capacity loss is less than 10%, and storage can last up to 6 months, but a full charge is required before use; if storage temperature exceeds 25°C, supplementary charging is needed in advance. The product is manufactured in accordance with IEC 60254-1:2005 and IEC 60254-2:2008, and is UL1989 recognized (MH14533).
Overall, the EVX12120 combines 12V voltage, 12Ah capacity, and deep cycle performance, making it suitable for electric mobility and energy applications requiring cyclic charge and discharge. Its valve-regulated sealed design with AGM construction provides a maintenance-free experience, while the pure lead construction and proprietary elements help meet durability requirements under cyclic conditions.
