LRP batterys.
#1
LRP batterys.
Hi.i own 2 7200 and 1 7500 lrp big mamma batterys for 5 months and always looked after them the same as my other batterys.all 3 lrp batterys is now so fat they wont fit in my xray .Anyone els had this.thanks
#2
- Are you racing or bashing?
- What charge rate are you using?
- What motor is installed in the car? How is it geared?
- Does your ESC have a low voltage cut-off? If so, where is it currently set?
#3
lrp
Hi.i use them for racing 1/10 touring cars and run for 5 min.using a 13.5t gm motor with hobbywing esc with turbo.charging at 6a as my charger cant go higer.speedo cut of is on auto but never cuts out.i use all my batterys the same and i have a demon 6800 that is over 2 years old with no problems.do not know what to do with theas batterys to get them usable again.thanks
#4
#5
I have a LRP 7000, that puffed after a couple of charges. Never had issues with my other batteries (Orion and TP)
#6
Hi.i use them for racing 1/10 touring cars and run for 5 min.using a 13.5t gm motor with hobbywing esc with turbo.charging at 6a as my charger cant go higer.speedo cut of is on auto but never cuts out.i use all my batterys the same and i have a demon 6800 that is over 2 years old with no problems.do not know what to do with theas batterys to get them usable again.thanks
My personal experience with LRP can be summarized as follows: LRP = (L)ow (R)eliability (P)roducts... Try a different battery manufacturer, and you'll most likely have a better experience.
Last edited by oeoeo327; 07-22-2014 at 07:29 AM.
#7
I have 2 of those packs and have about 30-40 cycles on them in Mod touring car without any sign of puffing. I think yours is probably part of a bad batch perhaps? Ive used LRP lipos for a few years now with good results.
#8
Tech Master
iTrader: (10)
I run LRP/Nosram too, usually swell around 6 months or less, I run 6.5t touring with turbo, running time are 8 minute, never discharge below 3.7v/cell and with 9 amp charge . sadly, there isn't much choice of good battery in Taiwan, IP swell even faster. I am out of choice too.
#9
Tech Fanatic
iTrader: (1)
I have 3 LRP Big Mama 7200s. At first they seemed like a good cell-- good punch, nice build quality--very balanced when charging.
I would use a different pack each qualifier, balance charging at 8.0-8.5 amps, and never running them down below @7.8 v. After about 5 race days in 17.5 sedan ALL 3 packs puffed/swelled equally to the point where they would not sit flat and splitting of the case became a serious concern. That is when I retired them. 5 RACE DAYS for $345 of lipos! OUCH!
Frankly, the LRP cells are hella expensive for what you are getting--a listed 50 or 55c and 4mm plugs for $100-$120!! I had heard the horror stories about LRP cells being junk but I insisted on getting them because I wanted a "matching" factory looking setup--ESC, motor & cells, but since I don't get my stuff for free I realized that was a half-assed reason to run the cells.
I am sure there are people who have good luck with LRP/Nosram lipos, but I am not one of them and for the price they cost you can do WAY better IMO.
I would use a different pack each qualifier, balance charging at 8.0-8.5 amps, and never running them down below @7.8 v. After about 5 race days in 17.5 sedan ALL 3 packs puffed/swelled equally to the point where they would not sit flat and splitting of the case became a serious concern. That is when I retired them. 5 RACE DAYS for $345 of lipos! OUCH!
Frankly, the LRP cells are hella expensive for what you are getting--a listed 50 or 55c and 4mm plugs for $100-$120!! I had heard the horror stories about LRP cells being junk but I insisted on getting them because I wanted a "matching" factory looking setup--ESC, motor & cells, but since I don't get my stuff for free I realized that was a half-assed reason to run the cells.
I am sure there are people who have good luck with LRP/Nosram lipos, but I am not one of them and for the price they cost you can do WAY better IMO.
#10
phil ,if your interested i have a set of those 7200,the ones i used at the wlrc nationals,they did 4 meetings total and put into storage at 6.7v,£90 for the pair,im still using my hpi plazma 6500 been using them for 19 months and still show no signs of swelling,although they have dropped a volt or 2, ill be getting the hpi lipos again when i feel i need to change them
are you letting them cool down before you recharge them?
i had the same problem with some shorty ip lipos
are you letting them cool down before you recharge them?
i had the same problem with some shorty ip lipos
#11
No thanks.ill stick to the demon batterys.never have troble with them an makes good power.should have never bought them.still learning.stick with what u know my dad always said.
thanks all for the comments
thanks all for the comments
#12
Will never buy again, paid a premium to have them puff up after 4 cycles.
#14
yes exactly, because the same time I bought the LRP's I bought 2 Reedy 7000's as well, both were looking like puff pastries after 5 cycles
#15
Many items is OEM IP !