LEGO Mindstorms EV3 Rechargeable DC Battery (45501)

I use these batteries in my middle school. They get lots of use and saves the environment since I'm not using 6 single use batteries each week per robot.

I like that these batteries are such good quality and hold a charge and are light weight.

Honestly, there's nothing wrong with the product to truly merit a one star deduction. I just have a really big problem spending this much on a battery. Works great with the EV3, and gets you out of the business of buying AA batteries in bulk...or taking on a part time job as your child's "batter charger guy" (the pay is pretty horrible fyi). If your kids are into Lego robotics, you pretty much have no choice but to pick up one of these bad boys, unless one of the above options appeals to you.

as described

This product was not looked like brand new one, there was scratches on the surface.

So far it works as expected. I hope don't be buying more batteries

7.4V and only 2200 mAh for a $100 rechargable battery?? Oh, and you still have to spend another >$30 just to charge it. Lego is making some serious profit off this product.

price and quality