Thunder 20A DC-DC Battery Charger With Solar Regulator

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$299 $399


This battery charger is designed to be versatile enough for use across a wide range of vehicles. Perfect for keeping your auxiliary battery charged.

The charger employs a unique pulse-charging algorithm that is sophisticated enough to determine the ideal charge for many battery types. This includes lithium batteries. 


Algorithm-based charging

Compatible with a range of vehicles

Adjustable battery capacity (up to 590Ah)

Works with most 12V Gel, Lead Acid, Lithium, Lithium Ion Phosphate & Calcium batteries

Automatic backlight, wake mode & sleep mode

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