BTRUI Multi Voltage Car Charger for Milwaukee M12/M18 12V-18V Li-ion Batteries

Overview

The BTRUI Multi Voltage Car Charger is designed for Milwaukee M12 and M18 cordless tools, letting you power up 12V–18V lithium-ion batteries directly from your vehicle. Built for on-the-go use, it combines practical charging ability with clear status indicators, so you can keep your toolkit ready between gigs or during long trips.

With an output range of 12V–18V at up to 3A, this charger supports a variety of Milwaukee Li-ion batteries, including popular model numbers such as 48-59-1812, 48-11-2420, 48-11-1815, 48-11-1840, 48-11-1841, and 48-11-1850. This makes it a flexible companion for tradespeople, DIY enthusiasts, and anyone who relies on compatible Milwaukee tools even when a traditional power outlet isn’t available.

Key compatibility and in-car charging

The charger accepts AC 12V or 24V input from your vehicle and outputs a steady 12V–18V delivery, enabling charging while you drive. The cigarette lighter plug design means you can connect it quickly to most cars, trucks, or camper vans, so you stay productive on the road without hunting for a spare outlet.

• Compatible with Milwaukee 12V-18V lithium-ion batteries (examples include 48-59-1812, 48-11-2420, 48-11-1815, 48-11-1840, 48-11-1841, 48-11-1850).
• Input via car cigarette lighter; ideal for job-sites between sites, road trips, camping, or power outages.

Safety and reliability

Safety is built into the design with multiple protection features to help prevent common issues. The charger helps manage current, voltage, and temperature to reduce the risk of overheating or overcharging, while providing short-circuit protection for peace of mind on the go. In addition, it carries established safety certifications to align with user expectations for quality and reliability.

• Overheat, overcurrent, overload, overcharge, and short-circuit protections.
• CE, FCC, and ROHS certified for assurance and compatibility with global standards.

User experience and practical use

The LED status indicator lets you confirm charging progress at a glance, so you can plan your workflow around tool readiness. The unit’s compact design makes it easy to store in a glove box or toolbox case, ready for the next site, travel day, or unexpected power gap. While it may not replace a dedicated workshop charger, it offers a dependable in-vehicle option when you need a quick top-up for Milwaukee M12/M18 batteries between tasks.

Why choose the BTRUI car charger?

By prioritizing compatibility, portability, and safety, this charger provides a practical solution for maintaining tool readiness during travel, at remote worksites, or during power interruptions. Consider it as a flexible accessory that complements your Milwaukee tools and keeps you moving toward your next task without relying on stationary power sources.