HRB 2pcs 6S 6000mAh Lipo Battery EC5 50C-100C 22.2V RC Lipo Battery Compatible with RC Helicopter Airplane Car Boat Truck

I bought these for my new 80mm Avanti EDF and so far they are working great. I got the HRB over the Ovonics equivalent: I'm a big fan of Ovonics batteries in general, but I opted for the HRB because it's a little lighter and these are kind of on the big side for the plane (4000-5200 recommended). I moved it back almost all the way in the compartment (and with CG behind the manufacturer recommendation), the plane flies great - with moderate aerobatics I can get 6 minute flight time with 3.8v left on the cells when I land.

Been buying HRB batteries for years now and have never had an issue. I still have some 4s and 6s batteries from 2018 and 2019 with hundreds of cycles through them and they work great. Cannot beat the price for the quality. Unless you’re flying competitively or have a very specific need these are the batteries for you.

These batteries work great and are true 6S power and capacity, great price!But out 2 sets of batteries, 1 battery from each set I was able to just grab the connector and pull the wire out of it because the solder did not hold at all, this is easily checked as soon as taken out of the box just grab the connector and give it a light tug, thats all it took.the function and price is so good this didn't bother me i just send them back as defective and get more which i test the same way.The 3S models I have not seen this issue with.Easily fixable if you wanted to take the time to personally correct and use anyways, But with free returns why bother.I WOULD DEFINITELY BUY AGAIN

I have been using the HRB 6 cell 6000 mah for over a year now. These batteries are solid and I wouldn’t chance another brand.

Been searching for a battery brand in a class by its self at a reasonable price HRB is it. I fly these in EDF jets and they are barely warm to the touch and the cells are balanced well. In my non EDF planes they feel at room temp. Have never had this with other brands only hot with puffing and cells wondering. These are now my battery of choice. Very satisfied with HRB thank you Amazon for selling these.

I has these for a while, but only maybe used them for a couple of dozen times - the batteries are kept at the storage charge level in between uses. I had trouble keeping HRB packs balanced pretty much from day one and it was a constant annoyance, but I did not appreciate just how annoying this is until I had 6000mah 6s from other well known brand that shall remain unnamed to maintain fairness.Otherwise, if you are OK for each pack have one or two cells always sag lower than others by about 0.05-0.08 volts, batteries are holding well and do their jobs fine. IR is very close across all cells and does not correlate to 'bad' cells. It is always same single cell in one battery and two cells in other.

First try with the HRB batteries. Bought for my Viper 90mm EDf jet. Worked awesome so ordered more!

I bought these batteries for an 80 mm Avanti S Electric Ducted Fan (EDF) jet and I have flown with them close to 12 flights so far. Although I have not been pushing them too hard, these batteries appear to hold up well, without any swelling, and come back from 4 - 4.5 minute flights relatively cool to the touch. They compare very well with the 5100 mAh 6S 70C Admiral batteries I was using before and, on top of that, they allow me for almost an additional minute of flight time. I hope they will continue to perform as well as they have so far and, if so, I would definitely recommend them.