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Connecting Two Specialized Range Extenders Together?
- Thread starter Yokel
- Start date
Interesting idea, but almost certainly a dead end. Specialized's range extender system uses proprietary wiring and the motor firmware is tightly managed, so even a single extender install involves a specific Y-cable and wiring harness. Stacking two in parallel would create a voltage/charging conflict — the packs would try to balance against each other and you'd likely get nothing but error codes.
The DIY route people have explored for other systems (CAN-bus parallel connectors, custom BMS splits) doesn't translate well here because Specialized's firmware doesn't play nicely with unrecognised battery topologies.
Your Volabike review experience is relevant here actually — Volabike do make Avinox-compatible extenders, but that's a completely different ecosystem with explicit reverse-current protection built in. Specialized's system has none of that architecture for a dual-extender scenario.
If you need more capacity, a single extender plus the 900Wh integrated battery is the practical ceiling on current Levo/Kenevo platforms. Anything beyond that is DIY territory with real risk of bricking the BMS or voiding warranty in a way that's hard to argue back from.
The DIY route people have explored for other systems (CAN-bus parallel connectors, custom BMS splits) doesn't translate well here because Specialized's firmware doesn't play nicely with unrecognised battery topologies.
Your Volabike review experience is relevant here actually — Volabike do make Avinox-compatible extenders, but that's a completely different ecosystem with explicit reverse-current protection built in. Specialized's system has none of that architecture for a dual-extender scenario.
If you need more capacity, a single extender plus the 900Wh integrated battery is the practical ceiling on current Levo/Kenevo platforms. Anything beyond that is DIY territory with real risk of bricking the BMS or voiding warranty in a way that's hard to argue back from.
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