The TOKUSHIMA BT5A-3 motorcycle battery features an innovative semi-dry charge maintenance-free design. Its internal structure uses a centrally lug lead-calcium alloy plate, providing extremely high discharge performance. The polyethylene bag-type separator has a high microporosity, effectively reducing water loss. Additionally, the battery's top filling port has been improved, simplifying the process of adding electrolyte while further reducing water loss, thereby significantly extending the battery's service life.
| Brand:TOKUSHIMA | ![]() |
| Model:BT5A-3 12V 5Ah | |
| CCA:65 | |
Terminal Type:
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| Weight:1.94Kg | |
| Size:120*61*130mm | |
| Warrnaty:2-3 Years | |
| Optional: |
The battery is shipped in a dry state and must be activated by adding electrolyte before use.
Due to the absence of liquid inside, it can be stored for several years without degradation.
Electrolyte must be added before first use, and charging may be necessary.
Can be stored for 2–5 years in a dry state.
Without electrolyte, the plates are less prone to degradation.
Activate only when needed.
| Electrolyte type | minimum operating temperature | Low-temperature performance |
| Ordinary water electrolyte | -20℃ | ★★☆ |
| DMSO | -50℃ | ★★★☆ |
| Cyclobutane sulfoxide mixed electrolyte | -65℃ | ★★★☆ |
| HBF₄+Mn(BF₄)₂ electrolyte | -90℃ | ★★★★★ |