3FM-2.8AH is a 6V2.8Ah sealed lead-acid battery. See the technical parameters for capacity ratings, dimensions and charging limits.
| 3FM-2.8AH (6V2.8Ah) | ||
| Sealed Lead-acid Battery Technical Specification | ||
| TECHNICAL PARAMETERS | ||
| Item | Condition | Value |
|---|---|---|
| Nominal Voltage | - | 6 V |
| Capacity (25 °C) | 20HR (5.25 V cutoff) | 2.8 Ah |
| Capacity (25 °C) | 10HR (5.25 V cutoff) | 2.60 Ah |
| Capacity (25 °C) | 5HR (5.25 V cutoff) | 2.38 Ah |
| Capacity (25 °C) | 3HR (5.25 V cutoff) | 2.10 Ah |
| Dimension | Length | 66 ± 1 mm (2.60 in) |
| Dimension | Width | 33 ± 1 mm (1.30 in) |
| Dimension | Height | 98 ± 1 mm (3.86 in) |
| Dimension | Total Height | 103 ± 1 mm (4.06 in) |
| Approx. Weight | - | 0.48 kg (1.06 lb) ± 3% |
| Terminal type | - | F1 |
| Internal resistance | - | Approx. 25 mΩ |
| Self-discharge (25 °C) | Per month | ≤3% |
| Self-discharge (25 °C) | Supplementary charging | Recharge every 3 months (maximum interval 6 months). Recharge before use. Shorten the interval at higher storage temperatures. |
| Nominal operating temperature | - | 25 ± 5 °C |
| Operating temperature range | Discharge | -15 to 50 °C |
| Operating temperature range | Charge | 0 to 40 °C |
| Operating temperature range | Storage | -15 to 40 °C |
| Float charging voltage (25 °C) | - | 6.75 to 6.90 V Temperature compensation: -20 mV/°C |
| Cyclic charging voltage (25 °C) | - | 7.25 to 7.40 V Temperature compensation: -30 mV/°C |
| Maximum charging current | - | 0.84 A |
| Maximum discharge current | 5 sec. | 42 A |
| Features | Case material | ABS container (UL94-HB, UL94-V0 optional) |
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3FM-2.8AH 6V2.8Ah Small Sealed VRLA Battery
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