Monster Marine Lithium | 12v to 36v Quantum Charge "On The Run”
12V to 36V Quantum Charge "On The Run" – Marine-Grade Alternator Charger for 36V Battery Systems
Charge While You Cruise. Lightweight. Smart. Built for the Water.
The 12v to 36v Quantum Charge "On The Run” is a powerful, compact marine-grade charger designed to keep your 36V lithium battery bank fully charged using your boat’s 12V alternator system—no shore power required. Connect it directly to your 12V cranking battery, and once your engine’s alternator reaches optimal voltage, it automatically activates and converts the incoming charge to 36V for your trolling or accessory batteries.
You can also plug in a standard 12V charger at home to top off your 36V battery via the same system—eliminating the need for dedicated 36V charging infrastructure. It’s the ultimate “On The Run” solution for keeping your system ready, whether you're on the water or off it.
Key Features:
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12V to 36V Charging – Converts alternator power to charge a 36V lithium battery bank
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Smart Automatic Activation – Kicks on when the cranking battery hits optimal voltage
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Works with Standard 12V Chargers – Charges your 36V bank when plugged in at home
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Ultra Compact & Lightweight – Designed for tight marine spaces
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Marine-Grade Waterproof Construction – Built tough for harsh environments
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Built-In Protections – Low voltage, over-temperature, and over-voltage safeguards
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Yes! We are proud to be one of the few online retailers who are authorized retailers for every single product we carry!
When Will My Order Ship?
Most orders ship within 1–3 business days. You’ll get a tracking number as soon as it ships via email!
Do We Accept Returns?
Yes absolutely, we have a no-hassle, 30-day return policy on all items! To refer to the full policy, click HERE
Are Products Brand New?
Yes! All products on Solar Guys Pro are 100% brand-new and in perfect condition.
We do not sell any used or refurbished items.
Frequently Asked Questions
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