Hilldow8.4V 4500mAh NiMH Battery Rechargeable with Traxas Connector for 1/8 1/10 RC Car Trucks Remote Control Vehicles LKW Buggy Boats (2 Packs)

Great buy for your RC toy. Battery run time is very good. And a great deal on price

Work just like the factory batteries as far as I can see. Will update if I see change. I'm not a heavy user, but am an engineer.

Compared to the factory 3000mah. These worked great. In a traxxas slash, they pulled harder for longer. A noticeable improvement over stock. Fit in stock chassis with no mods.

Perfect battery! This battery was extremely efficient for our airbrakes system implemented into a rocket that we launched to 10,000 feet. It was enough to power a servo that pushed 4 6inch fins out of the airframe and slowly counteract the air resistance to hit the 10,000 foot goal exactly. We were able to use this battery for 6 hours before we had to recharge it. It took minimal time to recharge and worked good as new with no battery life loss after a recharge. We plan to use this battery for 2 more years and will update if we encounter any issues, but so far no issues. Extremely great value for the money!

These batteries worked with my husband's RC just fine. The connector looks like it won't fit when you take it out of the box, but it does. It's just shaped a bit different than the original one. It seemed to last a little longer than the original but having the back up was worth it for a bit longer play time. I'd definitely recommend them for the price.

Tried to find way to contact them abt this,of corse no info unless screw around and send back,1 works fine,1 doesnt,1 stars because 1 doesn't work

The Hilldow 8.4V RC Battery SC NiMH 5000mAh Batteries have been a fantastic addition to my RC cars. I used to race RC cars back in the day and even made it to the ROAR nationals but that was a long time ago. I recently got back into it as I knew I would need some hobbies once my kids go off to college in the fall. That is when I realized that technology has come a long way in the last couple of decades!I used to race 4WD Offroad track (with my Yokomo Dogfighter SE) and all we had back then were Ni-Cad batteries. We used every trick in the bag to get every ounce of juice out of the battery packs and there quite a few races were my car died just after crossing the finish line. I was pleasantly surprised to learn that NiMH batteries have improved their capabilities.I am using these in my Traxxas Stampede and plan on using them in my D5 Pro drift car when I complete it. In the Traxxas they are doing great! Same, if not better run times and power than the stock NiMH batteries. I now have several sets of Hilldow batteries, NiMH and LiPo, and so far, they have all done great. I can recommend the Hilldow 8.4V RC Battery SC NiMH 5000mAh Batteries!

Bought these to run in my old and new Slashes, my grandkids are old enough now to enjoy RC's with me!