The FDK HR-4/3FAU (formerly Sanyo) is a high-capacity NiMH cell in the 4/3 FA size, supplied without solder tabs. It is ideal for building and repairing battery packs: diving lights, RC models, old laptop battery packs, and more.
Key features
-
4500 mAh typical capacity (4100 mAh minimum)
- Low internal resistance (approx. 20 mΩ)
- FDK-branded cell (formerly Sanyo)
- 4/3 FA size, to be spot-welded or fitted with tabs depending on the pack
Technical specifications
| Model |
FDK HR-4/3FAU |
| Size |
4/3 FA |
| Chemistry |
NiMH |
| Nominal voltage |
1.2 V |
| Typical / minimum capacity |
4500 mAh / 4100 mAh |
| Internal resistance |
approx. 20 mΩ |
| Protection circuit |
No |
| Connection |
Without tabs |
| Dimensions |
Ø 18.0 mm × 69.5 mm |
| Weight |
approx. 60 g |
| Charging temperature |
0 °C to 40 °C |
| Discharge temperature |
0 °C to 50 °C |
| Contents |
1 cell |
Applications
Assembly and refurbishment of NiMH battery packs: diving lights, RC models, power tools, and medium-drain devices. Not recommended for very low-drain devices (clocks), due to the risk of deep discharge.
Safety warning
Do not dismantle, short-circuit, heat or throw into a fire. In case of leakage, avoid contact with skin and eyes. For a custom pack, our workshop can assemble the battery for you.
