12V 20Ah Valve Regulated Lead Acid Battery for Electric Vehicles - 750 Cycle Life, Maintenance Free Design
12V 20Ah valve regulated lead acid battery designed for electric vehicles and mobility applications. Maintenance-free construction with advanced safety features and reliable performance.
- Nominal Voltage: 12V
- Capacity (25°C): 20Ah (2hr discharge at 10.0A)
- Open Circuit Voltage: ≥13.1V (ex-factory)
- High Discharge Performance: 3C2A discharge for minimum 5 minutes
- Operating Temperature: -15°C to 50°C
- Optimal Temperature: 5°C to 30°C
- Designed Service Life: ≥2 years (cycling at 20°C)
- Cycle Life: 750 cycles
- Warranty: 6 months
| Charging Mode | Voltage | Current | Duration |
|---|---|---|---|
| Boost Charge (1st Step) | 14.80±0.18V (-24mV/°C) | - | ≤12 hours |
| Boost Charge (2nd Step) | 13.80±0.18V (-24mV/°C) | - | ≤8 hours |
| Maximum Charge Current | - | 3.0A | - |
| Temperature | Discharge Capacity | Self-discharge Residual |
|---|---|---|
| 40°C | ~105% | - |
| 25°C | ~100% | - |
| 0°C | ~80% | - |
| After 1 Month | - | ≥90% |
| After 3 Months | - | ≥80% |
| After 6 Months | - | ≥70% |
- Electric bicycles
- Electric vehicles
- Electric wheelchairs
- Electric tricycles
- Electric sightseeing cars
- Golf carts
Manufactured with pure lead calcium alloy containing no toxic cadmium or antimony. Uses true lean solution colloid technology for absolutely no acid overflow and zero maintenance requirements.
Features high corrosion resistant alloy, patent ultrafine silica sol technology with surface area exceeding 500 km²/g, and special patented superfine glass fiber separator with high porosity and wet elasticity.
Supports constant voltage charging (14.8-15.0V) for fast charging and dual-segment constant voltage charging with timer for intelligent long-term charging.
- Vibration Performance: Complies with JB/T 10262-2001
- Safety Performance: Complies with JB/T 10262-2001
- Cycle Life Testing: Based on National Standard GB/T222199-2008
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.