BP28-12-BB Battery12V28AH-The universal series is suitable for UPS uninterruptible power supply, electric tools, and emergency lights

BP28-12-BB Battery12V28AH

VRLA Rechargeable Battery
BP28-12

FEATURES:
- Maintenance Free (no topping up needed)
- Non-spillable (no free electrolyte)
- Low Self Discharge, less than 3% per month
- Suitable for both Vertical & Horizontal installations

SPECIFICATIONS:
- Nominal Voltage: 12V
- Nominal Capacity: 28Ah @ 20 hour rate F.V. (1.75V/cell)
- Approx. Weight: 9600g (21.17lbs.)
- Terminals: B1 (Fitting M5 bolt & nut), T2 and I1 are optional
- Internal Resistance: ≤10mΩ (Fully Charged)
- Max. Discharge Current: 420A (5 sec.)
- Max. Charge Current: 8.4A
- Operating Temperature Range:
  - Charge: 0°C~40°C (32°F~104°F)
  - Discharge: -20°C~50°C (-4°F~122°F)
  - Storage: -20°C~40°C (-4°F~104°F)
- Container Material:
  - Standard: ABS (UL94 HB) BP28-12
  - Optional: Flame Retardant ABS (UL94 V-0) BP28-12FR

APPLICATIONS:
- UPS
- Telecom Systems
- Switch Boards
- Security Systems
- Medical Systems
- Photovoltaic Systems
- Emergency Lighting
- Golf Carts

DIMENSION (mm/inch):
- OUTER DIMENSIONS:
  - Length: 175+1.5 (6.89+0.06)
  - Width: 166+1.5 (6.54+0.06)
  - Container Height: 125+1.5 (4.92+0.06)
  - Total Height: 125+1.5 (4.92+0.06)
- TERMINAL TYPE:
  - @ Terminal B1: M5x0.8
  - @ Terminal T2: 12.0 (0.47)
  - @ Terminal I1: 2.0 (0.08)
  - Hardware initial Torque: B1 (2.5Nm+5%), I1 (4.0Nm+5%)

CONSTANT POWER DISCHARGE CHARACTERISTICS at 25°C/77°F:

| Discharge F.V. | Time  | 1 Hr.  | 10 Hr. | 5 Min. | 10 Min. | 15 Min. | 20 Hr. |
|----------------|-------|--------|--------|--------|---------|---------|--------|
| 10.8V          | 81.6  | 83.2   | 84.0   | 56.3   | 57.1    | 57.4    |  -     |
| 10.5V          | 57.1  | 57.4   |  -     | 36.9   | 117.2   | 80.7    | 62.5   |
| 10.2V          | 21.3  | 45     | 32.08  |  -     | 124.5   | 83.6    | 64.4   |
| 9.9V           | 13.01 | 65.9   | 21.62  | 84.6   | 57.6    | 32.18   |  -     |
| 9.6V           | 13.44 | 87.4   | 67.2   | 38.6   | 218.4   | 85.1    | 57.8   |

CONSTANT CURRENT DISCHARGE CHARACTERISTICS at 25°C/77°F:

| Discharge F.V. | Time  | 5 Min. | 10 Min. | 15 Min. | 30 Min. | 1 Hr.  | 3 Hr.  | 5 Hr.  | 10 Hr. | 20 Hr. |
|----------------|-------|--------|---------|---------|---------|--------|--------|--------|--------|--------|
| 10.8V          | 91.2  | 107.5  | 114.2   | 119.3   | 123.3   | -      | -      | -      | -      | -      |
| 10.5V          | 65.6  | 71.1   | 73.6    | 75.4    | 76.9    | -      | -      | -      | -      | -      |
| 10.2V          | 51.9  | 54.3   | 56.0    | 57.3    | 58.4    | -      | -      | -      | -      | -      |
| 9.9V           | 30.1  | 31.3   | 32.0    | 32.4    | 32.7    | -      | -      | -      | -      | -      |
| 9.6V           | 17.12 | 17.64  | 17.96   | 18.17   | 18.35   | -      | -      | -      | -      | -      |

Unit: A