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The picture shown is for illustrative purposes only. Depending on availability, you may receive a different brand. Do not hesitate to contact us if you need more information about the availability of a specific brand.
Your SEALAKE FM640A battery has a direct replacement. The SigmasTek SP6-4.5 (T1) matches the original specifications — same 6V, same 4.50Ah, same F1 terminals, same dimensions. It drops right in.
Our battery specialists verified the SigmasTek SP6-4.5 (T1) against the SEALAKE FM640A on every critical dimension. The 2.76" x 1.86" x 3.94" form factor and F1 terminal configuration are an exact match, ensuring a seamless swap with no adapter cables or tray modifications needed.
We do not just sell batteries — we ensure you get the right one. The SigmasTek SP6-4.5 (T1) (SKU: ST-SP6-4.5-T1) is brand new, fully charged, and backed by a 12 months warranty. Our battery specialists are available to verify compatibility before you order.
| Manufacturer | SigmasTek |
|---|---|
| Length (in.) | 2.76 |
| Voltage | 6 Volts |
| Width (in.) | 1.86 |
| Amp Hours | 4.5 AH |
| Height (in.) | 3.94 |
| Terminal Type | F1 |
| Weight (lb.) | 1.59 |
| Warranty | 12 Months |
