The DYVINITY 4FM-4AH is a 4 V, 4 Ah rechargeable sealed lead-acid battery with F1 terminals. Its footprint is 47 × 47 mm, with a total height of 105 mm.
| Item | Condition | Value |
|---|---|---|
| 4FM-4AH (4V4Ah) | ||
| Sealed Lead-acid Battery Technical Specification | ||
| TECHNICAL PARAMETERS | ||
| Nominal Voltage | - | 4 V |
| Number of cells | - | 2 |
| Capacity (25 °C) | 20HR (3.50 V cutoff) | 4.0 Ah |
| Capacity (25 °C) | 10HR (3.50 V cutoff) | 3.72 Ah |
| Capacity (25 °C) | 5HR (3.50 V cutoff) | 3.40 Ah |
| Capacity (25 °C) | 3HR (3.50 V cutoff) | 3.0 Ah |
| Dimension | Length | 47 ± 1 mm (1.85 in) |
| Dimension | Width | 47 ± 1 mm (1.85 in) |
| Dimension | Height | 100 ± 1 mm (3.94 in) |
| Dimension | Total Height | 105 ± 1 mm (4.13 in) |
| Approx. Weight | - | 0.45 kg (0.99 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) | - | 4.50 to 4.60 V Temperature compensation: -20 mV/°C |
| Cyclic charging voltage (25 °C) | - | 4.82 to 4.94 V Temperature compensation: -30 mV/°C |
| Maximum charging current | - | 1.2 A |
| Maximum discharge current | 5 sec. | 60 A |
| Features | Case material | ABS container (UL94-HB, UL94-V0 optional) |
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4FM-4AH 4V4Ah Small Sealed VRLA Battery
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