Reviews for EcoPower "Electron" 2S 30C Hard Case LiPo Battery (7.4V/5000mAh) (ROAR Approved) [ECP-5107]

I bought 4 of these batteries for my Mamba Monster 2 equipped E-Maxx. Even through multiple full-power runs, they don't get too warm. I did swap out the Deans connectors for EC5, but that is it. I've only got 4 cycles on them, so longevity is still out. But I can get 30 minutes of runtime out of a pair, and with the 2C charge time, you can get them back up in a little over 45 minutes. Not too bad! Two of the packs are a bit lumpy, but I don't know if they are swollen, or just like that from the factory. If they end up swelling up, I'll update the review accordingly.

Not very durable. Had connections break in both that I bought. I'll stick to the trinity packs for racing and racers edge for bashing.

I own 2 of these batteries now and I'm not overly impressed with them. I got the 2nd one just under a year ago and it has started swelling, so of course no warranty left. The other one the balancer port has quit working, so its just a matter of time before it goes as well. While these batteries were working they did great, plenty of punch etc. I however will not purchase any more of them. I gave them a "2" because of the short time I got and how they performed while working.

Using these battery packs with my Flow works team esc and lrp X20 8.5 motor with no issues no power loss during the race. Battery will charge up to 5200mah 4.20 on both cells. Battery balances well and have over 25 charges. You can't bet the price and performs.

I have 3 of these packs in 2s, use them running a 8.5 mod in my SCT, no problems what so ever. Plenty of run time and the pack does not even get warm. 30c seems like a conservative rating.

Awesome batteries for the price.. very durable made plastics thick gauge wires and nice rubber grommets.. I run these in all my rc trucks such as the losi scte sc10.2 b4.1 work great good power and awesome run times. I own four of them and would absolutely buy more of them. I have put over 50 charges on two of them charging at 5 amps and no signs of wear of puffing, no noticeable loss in power.. holding up great!!! Best part come pre soldered with DEANS ultra plugs!!

The battery is very good. It is under rated. I was charging and it stopped at 5,250. And it was not yet peaked.

This battery ROCKS! Regardless of price, this battery is awesome! Perfect fit in my Axial Ridgecrest, close to 2hrs run time and have been averaging 5300 mah. The low cost is just icing on the cake. Thank You A-Main!

Hands down one of the best batteries I've used and raced with. Buy it!

the battery is excellent i have a sc10 4x4 with a rx8 esc and a tenshock 4600 kv motor and it is insane fast in that truck

Thus far has proved to be a good reliable battery. After multiple uses I have had no problems and get strong runs. Initial run time leaves a little to be desired however it seems to improve after the first couple recharges. For the price you can not go wrong.

These are my first lipo packs and I must say I am very satisfied! I recently got back into the hobby and purchased the new Team Associated Rival truck. The truck came with 2 - 8.4Volt NiMh batteries and did a fairly good job of moving this heavy truck. Runtime was only about 10 minutes of full throttle driving and I certainly needed a second set of batteries. I looked into many different brands of Lipo's and it seemed they all have pro's and cons. Not wanting to spend a ton of money on these as they were my first, I found these Ecopower's at a great price and figured I'd give them a shot. I've only run them twice so far but am very pleased. Overall power and acceleration is greatly improved over the NiMh's and runtime was about 20-25 minutes! Needless to say, I will be definitly be buying a second set. The overall build quality of the hardcase looks excellent and the rubber grommets around the wires looks like they do a good job of protecting the wires from fraying as well as water infiltration. Overall I'm very pleased with them so far and hope to continue to enjoy them without problems down the road!

Great batteries for the price. Bought one and had same if not a little better performance to my counterparts who also run the same truck and motor but paid a lot more for their higher brand batteries. I also get a little longer run time (sometimes 3 or 4 laps). So impressed I now own 2 and my friends have bought some. I and also going to get a 3S. Just wish it came with a Traxxas connector.

This is the only LiPo battery I've ever used so I don't have anything to compare it to, but I bought two of these batteries and they both perform almost identically which says a lot about the consistency of the battery. It's a great value for it's price. I use these in my Short Course Truck and my Rock Crawler. The only reason I haven't bought more is that it's on back order.

Fantastic packs, I did replace the Deans with Losi EC plugs (deans aren't my style), but I can't say enough about the quality of these packs
and I own 5, they never fail to charge full every time.

great batteries for the price. lasts about 15 to 20 minutes and takes about 30 45 minutes for my attery to charge using and onyx 235 lipo charger. i would reccoment getting these. good job with this amain

I loved EcoPower for this amazing product. Its the best you can buy to upgrade your RC truck. I used 2 of this battery on my E-Revo BL and it is a complete satisfactory. I assure you that this battery is the best you can get for its low price. I highly recommend it.

Looks nice Feels nice~
Wire leads are no good for slash pe "LCG" do to battery mounting style STOCK~

3 charges on the 3 i ordered last week and one if them never has balanced correctly
420/419 every time/

Run time is about 30 minutes in 4x4 VXL
GREAT BASH Battery but would recommend a little high C rating for Race nite.

I love AMainHobbies! This battery (and my whole order) was shipped quickly, everything was right, and everything works great. This battery performs flawlessly in my Savage XS, I highly recommend it.

Just got this today for my Slash 4x4 first time having a brushless model and goin lipo and this is a kick a** battery my truck hauls so much a** i love it you cant go wrong with this battery granted I had to get the truck fitted with a deans plug it was worth it I am extremely pleased thank you A-Main