MSB-800-b.b.Battery2V800AH-Valve controlled sealed lead-acid batteries are suitable for uninterruptible power supply (UPS) systems, telecommunications systems, and industrial vehicles

b.b.BatteryMSB-800 (2V, 800Ah)VRLA Rechargeable Battery

**APPLICATIONS**
- Telecom
- UPS (Uninterruptible Power Supplies)
- Central Office
- Energy Storage Systems

**FEATURES**
- Sealed structure, no electrolyte leakage or spillage.
- High-performance alloy for corrosion-proof features.
- Unique electrolyte system ensures maximum service life.
- Special paste formula promotes good charging acceptance.
- Electrolyte with gel technology.
- Absorbent Glass Mat technology for efficient gas recombination.

**SPECIFICATIONS**
- **Nominal Voltage:** 2V
- **Nominal Capacity:** 800Ah @ 10-hour rate F.V. (1.80V/cell)
- **Approx. Weight:** 63.0 Kg (138.9 lbs.)
- **Terminals:** B6 (Fitting M8 bolt & nut), I3 is optional
- **Internal Resistance:** ≤0.6mΩ (Fully Charged)
- **Max. Discharge Current:** 3200 A (5 sec.)
- **Max. Charge Current:** 200 A
- **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)
- **Opening Pressure:** 10 ~ 35 kPa
- **Safety Valve:** Standard: ABS (UL94 HB), MSB-800; Optional: Flame Retardant ABS (UL94 V-0), MSB-800FR
- **Container Material:** MH19884
- **DIMENSIONS (mm/inch):**
  - **Length:** 410 ± 2.0 (15.79 ± 0.08)
  - **Width:** 175 ± 2.0 (6.89 ± 0.08)
  - **Container Height:** 330 ± 2.0 (12.99 ± 0.08)
  - **Total Height:** 358 ± 2.0 (14.09 ± 0.08)

**CONSTANT POWER DISCHARGE CHARACTERISTICS AT 25°C/77°F (Unit: W)**
| Discharge Time | 30 Min | 1 Hr | 2 Hr | 3 Hr | 4 Hr | 5 Hr | 6 Hr | 8 Hr | 10 Hr | 12 Hr | 20 Hr |
|----------------|--------|------|------|------|------|------|------|------|-------|-------|-------|
| F.V.           | 128.96 | 80.35| 135.18| 84.26| 139.82| 86.77| 88.20| 88.95| 89.20 | -     | -     |
| 1.85V          | 1049.2 | 720.0| 463.2 | 360.8| 280.4 | 215.2| 178.0| 190.4| 196.4 | 148.8 | 157.5 |
| 1.80V          | 241.6  | 1164.0| 792.0 | -    | -     | -    | -    | -    | -     | -     | -     |
| 1.75V          | 500.0  | 382.2 | 308.8 | 263.2| 229.2 | -    | -    | -    | -     | -     | -     |
| 1.70V          | 1275.2 | 840.0 | 530.0 | 239.2| 402.4 | 323.5| 275.2| -    | 143.08| 145.10| 145.78|

**CONSTANT CURRENT DISCHARGE CHARACTERISTICS AT 25°C/77°F (Unit: A)**
| Discharge Time | 30 Min | 1 Hr | 2 Hr | 3 Hr | 4 Hr | 5 Hr | 6 Hr | 8 Hr | 10 Hr | 12 Hr | 20 Hr |
|----------------|--------|------|------|------|------|------|------|------|-------|-------|-------|
| 1.85V          | 560.0  | 384.0| 244.0| 188.6| 148.0| 125.2| -    | -    | -     | -     | -     |
| 1.80V          | 624.0  | 689.2| 764.0| 818.0| 424.0| 452.0| 484.8| 504.4| -     | -     | -     |
| 1.75V          | 264.0  | 281.2| 293.2| 301.2| 200.0| 211.8| 220.7| 228.0| -     | -     | -     |
| 1.70V          | 136.0  | 144.0| 148.8| 152.8| -    | -    | -    | -    | -     | -     | -     |
| 1.65V          | -      | -    | -    | -    | -    | -    | -    | -    | -     | -     | -     |

**Note:**
- F.V. stands for "float voltage," the voltage of the battery after charging is complete.
- A denotes Ampere, and W represents Watt.