Pay in 4 interest-free payments with Afterpay
Ships from trusted U.S. suppliers
Extends the output cable of any Battery Tender® WaveCharge on-board charger bank by 10 feet with a marine-grade cable and connector assembly built for permanent installation in salt air, bilge, and below-deck environments. For larger boats where the WaveCharge unit and a battery bank are separated by more than 5 feet, the 10ft marine extension bridges the gap without compromising waterproof integrity or requiring relocation of either the charger or the battery.
Marine-Grade Construction
Tinned copper conductors and waterproof sealed connectors rated for permanent installation in wet marine environments. Corrosion-resistant throughout — suitable for bilge-adjacent routing, engine room installation, and any location subject to salt air, condensation, and moisture exposure.
Compatible Battery Tender® Chargers
- WaveCharge 2-Bank 12V 6 Amp
- WaveCharge 3-Bank 12V 9 Amp
- WaveCharge 4-Bank 12V 12 Amp
- WaveCharge Pro 2-Bank 12V 20 Amp
- WaveCharge Pro 3-Bank 12V 30 Amp
- WaveCharge Pro 4-Bank 12V 40 Amp
When to Use the 10ft Marine Extension
Use the 10ft marine extension on larger boats where battery banks are distributed across significant distance — engine rooms at amidships with batteries mounted forward or aft, helm-area electrical panels with stern battery banks, liveaboard boats with house batteries separated from the charger by multiple compartments, or any multi-bank installation where one or more banks require more than 5 feet of additional reach.
1-Year Limited Warranty | DeLand, Florida Since 1965
