Blomiky 2 Pack 7.2V 900mAh 6 Cell AA Nicd Rechargeable Battery with Red JST Plug and USB Charger Cable for New Version TR-211 TR-212 TR-215 550 15 Channel RC Excavator 550 Battery 2

Much better battery pack than the one that came with excavator..great price

I have had these batteries for a while now and they continue to charge and function perfectly.

Would not fit my machine

I use it to power a toy Excavator that pushes a “door open” button all day. It lasts the entire shift, I have not loose power yet (I charge it after 7-8 hours). It’s not in constant use but my worries of it dying mid shift have welll been alleviated.

One of the chargers did not work

I got these to replace my he battery on my robobuddy. I'm not sure if it's because it's a higher capacity, or they don't deliver the energy quick enough, but the low battery warning intermittently turns on. I do seem to get more time, and a quick pause in movement solves the warning issue. Overall I am happy.

Great product works great fast shipping would buy again👍

Did the job it was supposed to do. Bonus that’s its a 2 pack.