Description
Application
The True® Large Dual Lithium Battery Kit is designed for boats, cars, 4WDs, trucks, vans, RVs, and general automotive or marine applications. The True® Lithium 140 Amp Voltage Sensitive Relay offers priority charging for your primary starting battery and can be used with alternators producing up to 150 amps.
The True ® Dual Lithium Battery Kit provides fully automatic battery management. It’s an easy-to-install kit with a wiring diagram, waterproof cables, shockproof casing, and heat-resistant components for safe and efficient use of your auxiliary battery system.
Everything needed to connect a second Lithium battery located as far as 20 feet from the primary battery.
This product comes packed in a heavyweight zip bag for installer/consumer use.
Brand compatibility

“The True® Lithium Kit was a game-changer for my 4WD setup. Easy to install and rock-solid performance on long trips.”
— Mark T., Minnesota
“Installed it in my boat—no voltage drop, no drama. The waterproof cabling and smart relay are top-notch.”
— William L., Utah
“Perfect for my caravan. The automatic battery management saves me time and worry—highly recommended.”
— Dave R., Colorado
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