Do you use Milwaukee M18 tools? If yes, you need to see this review of SuperCharger & Forge battery 

Yes, I was very skeptical. Also, but this new charger and battery is amazing. Definitely seems like where it’s going in the future.
The M18™ REDLITHIUM™ FORGE™ XC6.0 Battery Pack, now offers the same power as the HIGH OUTPUT™ HD12.0 but in a more compact and lighter design. Achieve a supercharge to 80% in just 15 minutes with the fastest, most durable, and highest performing battery. Ideal for overhead work and tight spaces, the XC6.0 features a resistant housing and built-in REDLINK™ Intelligence for maximum protection. Fully compatible with over 250 M18™ tools.
The M18™ Dual Bay Simultaneous Super Charger, providing up to 6X faster charging and powering up an M18™ REDLITHIUM™ FORGE™ XC6.0 Battery to 80% in just 15 minutes. As Milwaukee’s fastest charger, it reduces downtime significantly, letting you return to work quicker. This Super Charger can handle two batteries at once and utilizes CHARGE ADAPT™ technology for efficient power distribution, ensuring rapid charging. Features like COOL-CYCLE™ Active Cooling System and REDLINK™ Intelligence optimize battery performance and extend life. Compatible with all M18™ batteries, this charger is a game-changer for maximizing productivity.

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