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EP28-12-BB Battery12V28AH-The mobile power series is suitable for off grid power systems, camping and RV travel, ship applications, and solar energy storage

Features
VRLA Rechargeable Battery
EP28-12

- Utilizes Absorbent Glass Mat technology for efficient gas recombination.
- Maintenance-free (no water topping-up required).
- Non-spillable battery with no free acid.
- Can be used in any orientation (excluding inverted use).
- Designed for heavy-duty cyclic applications.

Applications
- UPS
- Golf Carts
- Wheelchairs
- Lawn Mowers
- Electric Vehicles

Specifications
- Nominal Voltage: 12V
- Nominal Capacity: 28Ah @ 20-hour rate F.V. (1.75V per cell)
- Approximate Weight: 9700g (21.39lbs)
- 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) for EP28-12, Optional: Flame Retardant ABS (UL94 V-0) for EP28-12FR

Dimensions (mm/inch)
- 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)

EP28-12-BB Battery12V28AH

Features
VRLA Rechargeable Battery
EP28-12

- Utilizes Absorbent Glass Mat technology for efficient gas recombination.
- Maintenance-free (no water topping-up required).
- Non-spillable battery with no free acid.
- Can be used in any orientation (excluding inverted use).
- Designed for heavy-duty cyclic applications.

Applications
- UPS
- Golf Carts
- Wheelchairs
- Lawn Mowers
- Electric Vehicles

Specifications
- Nominal Voltage: 12V
- Nominal Capacity: 28Ah @ 20-hour rate F.V. (1.75V per cell)
- Approximate Weight: 9700g (21.39lbs)
- 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) for EP28-12, Optional: Flame Retardant ABS (UL94 V-0) for EP28-12FR

Dimensions (mm/inch)
- 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)

Constant Power Discharge Characteristics at 25°C/77°F (Unit: W)
| Discharge Time | 5 min   | 15 min  | 3 hr    | 5 hr    | 10 hr   | 20 hr   |
|----------------|---------|---------|---------|---------|---------|---------|
| Discharge Current | 81.68   | 83.28   | 84.08   | 85.2    | -       | -       |
| Discharge Current | 91.20   | -       | -       | -       | -       | -       |
| Discharge Current | 96.50   | -       | -       | -       | -       | -       |

Constant Current Discharge Characteristics at 25°C/77°F (Unit: A)
| Discharge Time | 5 min   | 10 min  | 15 min  | 30 min  | 1 hr    |
|----------------|---------|---------|---------|---------|---------|
| Discharge Current | 166.44  | 166.80  | 166.88  | 166.92  | -       |

Discharge Time at Different Voltages (Unit: Hours)
| Voltage  | 1.80V | 1.75V | 1.70V | 1.65V | 1.60V |
|----------|-------|-------|-------|-------|-------|
| 5 hr     | 82.2  | 60.4  | 48.3  | 28.3  | 16.3  |
| 10 hr    | 6.80  | 4.70  | 2.62  | 1.37  | -     |

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