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MSB-400-b.b.Battery2V400AH-Valve controlled sealed lead-acid batteries are suitable for uninterruptible power supply (UPS) systems, telecommunications systems, and industrial vehicles

SPECIFICATIONS**
- **Nominal Voltage:** 2V
- **Nominal Capacity:** 400Ah @ 10-hour rate (1.80V/cell)
- **Approx. Weight:** 31.5kg (69.4lbs.)
- **Terminals:** B6 (Fitting M8 bolt & nut), I3 (optional)
- **Internal Resistance:** ≤0.8mΩ (Fully Charged)
- **Max. Discharge Current:** 1760A (5 sec.)
- **Max. Charge Current:** 100A
- **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)
- **Safety Valve Opening Pressure:** 10 ~ 35 kPa
- **Container Material:** Standard: ABS (UL94 HB), MSB-400; Optional: Flame Retardant ABS (UL94 V0), MSB-400FR

**DIMENSIONS (mm/inch)**
- **Length:** 211 ± 2.0 (8.31 ± 0.08)
- **Width:** 176 ± 2.0 (6.92 ± 0.08)
- **Container Height:** 329 ± 2.0 (12.95 ± 0.08)
- **Total Height:** 357 ± 2.0 (14.06 ± 0.08)

b.b.battery-MSB-400 (2V 400Ah)VRLA Rechargeable Battery

**FEATURES**
- Maintenance-free (no water topping-up required)
- No free acid (Non-spillable battery)
- Low self-discharge rate, lower than 3% capacity loss per month
- Can be used in any orientation (excluding inverted use)
- Sealed structure, no electrolyte leakage or spill
- High-performance alloy to secure corrosion-proof feature
- Unique electrolyte system achieves maximum service life
- Special paste formula promotes good charging acceptance
- Electrolyte with gel technology
- Absorbent Glass Mat technology for efficient gas recombination

**APPLICATIONS**
- Telecommunication
- UPS
- High-performance alloy to secure corrosion-proof feature
- Central Office
- Unique electrolyte system achieves maximum service life
- Energy Storage Systems
- Special paste formula promotes good charging acceptance
- Electrolyte with gel technology

**SPECIFICATIONS**
- **Nominal Voltage:** 2V
- **Nominal Capacity:** 400Ah @ 10-hour rate (1.80V/cell)
- **Approx. Weight:** 31.5kg (69.4lbs.)
- **Terminals:** B6 (Fitting M8 bolt & nut), I3 (optional)
- **Internal Resistance:** ≤0.8mΩ (Fully Charged)
- **Max. Discharge Current:** 1760A (5 sec.)
- **Max. Charge Current:** 100A
- **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)
- **Safety Valve Opening Pressure:** 10 ~ 35 kPa
- **Container Material:** Standard: ABS (UL94 HB), MSB-400; Optional: Flame Retardant ABS (UL94 V0), MSB-400FR

**DIMENSIONS (mm/inch)**
- **Length:** 211 ± 2.0 (8.31 ± 0.08)
- **Width:** 176 ± 2.0 (6.92 ± 0.08)
- **Container Height:** 329 ± 2.0 (12.95 ± 0.08)
- **Total Height:** 357 ± 2.0 (14.06 ± 0.08)

**Constant Power Discharge Characteristics (25°C/77°F, Unit: Watt)**
| Discharge Time | 30 Min | 5 Hr.  | 12 Hr  | 20 Hr  |
|----------------|--------|--------|--------|--------|
| F.V.           | 64.48  | 42.13  | 44.47  | 44.60  |
| 1.80V          | 360.0  | 396.0  | 400.0  |        |
| 1.75V          | 420.0  | 448.0  | 453.0  |        |
| 1.70V          | 382.0  | 399.0  | 401.0  |        |

**Constant Current Discharge Characteristics (25°C/77°F, Unit: Ampere)**
| Discharge Time | 30 Min | 1 Hr   | 2 Hr   | 3 Hr   | 4 Hr   |
|----------------|--------|--------|--------|--------|--------|
| F.V.           | 280.0  | 192.0  | 122.0  | 94.3   | 74.0   |
| 1.80V          | 312.0  | 212.0  | 132.0  | 100.0  | 81.6   |
| 1.75V          | 344.6  | 226.0  | 140.6  | 105.9  | 72.0   |
| 1.70V          | 382.0  | 146.6  | 110.4  | 74.4   | 64.0   |

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