This Attwood Battery Maintenance Charger is a fully automatic on-board charger built to maintain 12-volt batteries at a steady 1.5 amp maintenance charge. It’s designed to stay connected long-term rather than for a quick top-off.
It’s water resistant with built-in safety features, including short circuit protection and reverse polarity protection, guarding against the most common wiring mistakes during installation. LED status indicators show charge state at a glance.
This single-bank unit handles one battery at a time. It’s a straightforward fit for a boat that needs to keep its battery topped off between trips without a full multi-bank charging system. Shop more battery management systems.
- Fully automatic, 1.5 amp maintenance charge
- Water resistant, short circuit and reverse polarity protection
- LED status indicators
- Single 12V bank








