8.4V Charger 2A Headlight Adapter 7.2V 7.4V for Vivaspa Massager 2S x 8 Lithium Battery Pack Wall Charge X2 X3 Bicycle Flashlight Bike lamp

I purchased several of these as a low-cost alternative to the factory-supplied charger provided with an Ultrasabers lightsaber. Provides the same dual-color status LED & switch-over to maintenance charge as the factory unit. A perfect replacement at 1/4 the price!* Note:. This charger has a 2.1 mm tip. It works with both older sabers with a 2.1 mm tip & also newer sabers with a 2.4 mm tip?

My 15-year old son did the research & found that this was the plug he needed to recharge the light saber he got for Christmas. It worked perfectly & charged it in just minutes.

Works as it should. I am using it as a charger for a DIY device that uses a battery management module to charge 2 18650 batteries.

Like this better to recharge my bigger battery packs than the 1 amp. This one is a 2 amp charger, twice as fast.

Worked perfectly -- an improvement over the charger included with the Bright Eyes rechargeable bike headlight.

Works as advertised and has an indicator light to show when charging us complete.