NiMH Rechargeable Battery: 8.4V 4200mAh (35.28Wh, 7 x MH-SC4200)

The Batteryspace.com is a great place to shop and here is why. I ordered a NiMH battery pack for an RC car because they were cheap and had fairly decent review, although there were concerns that they were relatively unknown. I took a chance because there are other sellers that sell similar unknown brands of batteries for around the same price so I know their prices aren't one of those "too good to be true" scams. They shipped my battery on time but they sent the wrong product. It was similar since the only difference was the type of connector, but not exactly as described on the website (batteryspace.com). Here is where they proved to be a great seller. I sent them an e-mail on Saturday with my complaint and by Monday morning I had a response. Not expecting them to read complaint e-mails over the weekend, I called them Monday morning and they picked up the phone and spoke to me and explained they saw my e-mail and had already mailed the correct product via priority mail along with a return postage for the wrong batteries. That's what I call great customer service. Mistakes happen but it's how cases are resolved that define a good company you'd want to deal with. The battery I purchased was the Powerizer NiMH 4200 mAH 8.4V 7 cell pack with Dean's connectors for the E-Maxx. They offer it with two types of connectors, the original Tamiya or the Dean's Ultra plugs. The ones I first received were the Tamiya connectors and when they arrived, the glue that holds the 7th cell together was brittle and the cell was held in place by the metal strip connector which was not sturdy. Well, when I complained about receiving the wrong connector type, I also complained about the workmanship of the battery pack. Then when I received the correct packs they replaced promptly, I was extemely satisfied. They felt sturdy and the glue wasn't old and brittle like the first ones I received. Well, that's not what makes for a good battery but it's a start. I charged them up and WOW! These packs

These felt sturdy and the glue wasn't old and brittle like the ones I received with Tamiya connectors by mistake. I charged them up and WOW! These packs exceeded all my expectations in terms of the additional power the provided to the motor. Speed increased and the car ran much longer than I thought it would, possibly 20 minutes of casual and speed runs. Long enough that I got tired before the battery drained, which is what I wanted. I have been running these batteries on average 3-4 times a week for about 2 months and I feel they are pretty much the same as they were when I first charged them up. These are relatively cheap packs a reason. The connectors they use to hold the batteries together, the tabs, are very thin and flimsy. They work fine as connectors I'm sure, since the packs work great in providing the power to the truck, but it doesn't look strong and if anything does break, it could be those connectors. I don't mind the thin tabs, it could be by design that they used the thin tabs. The thick heavy duty tabs could make it difficult to fit in the battery slot because of the extra bulk but I think they could have found a way to make it work using the stronger connectors.Overall, I love these batteries.