Product parameters

Rated Voltage: 12V
Rated Capacity: 28.0Ah @  20 hour rate (1.75V/monomer)
Approximately weight: 9.7 kg (21.39 pounds)
Terminal: B1 (equipped with M5 bolts and nuts), optional T2 and I1
Internal resistance: ≤ 10m Ω (fully charged)
Maximum discharge current: 420A (5 seconds)
Maximum charging current: 8.4A
Operating temperature range:
Charging: 0°C to 40°C (32°F to 104°F)
Discharge: -20°C to 50°C (-4°F to 122°F)
Storage: -20°C to 40°C (-4°F to 104°F)
Container material: Standard ABS (UL94  HB), optional flame retardant ABS (UL94  V-0)
Size (mm/inch)
Length: 175  ±  1.5  mm（6.89 ±  0.06  Inch)
Width: 166  ±  1.5  mm（6.54 ±  0.06  Container height: 125; ±  1.5  mm（4.92 ±  0.06  Inch)
Total height: 125  ±  1.5  mm（4.92 ±  0.06 

Product features

Maintenance free Design: No need to add water, easy management.
Leak proof feature: No free acid, ensuring safety
Low self discharge rate: suitable for long-term storage and ready for use at any time
Flexible installation: Supports multiple installation directions (excluding inversion) to meet diverse needs
Absorption glass fiber pad technology: ensures efficient recombination of gases and improves battery efficiency

Application scenarios of the product

UPS (uninterruptible power supply): provides continuous power support for critical equipment.
Wheelchair: Provides strong power for electric wheelchairs to ensure users' travel
Mower: Provides stable power for gardening equipment and improves operational efficiency
Electronic medical equipment: Ensure that medical equipment operates normally at critical moments
Golf Cart: Provides convenient mobility for golf courses

Customer reviews and case

User Feedback BPL28-12-BB battery  has shown excellent performance in various applications, especially highly praised in UPS systems and medical equipment, demonstrating its stability and reliability The BPL28-12-BB battery  y, with its powerful performance and maintenance free characteristics, has become an ideal choice for uninterruptible power supplies and other high demand equipment, meeting the needs of high reliability and long lifespan