Yet another E-revo lipo question

[suicideneil]

4s2p A123 fits, but thats only equal to 3s lipo, when what you want is something equal to 4s-5s lipo- thats 10-12 A123 cells...

Zippies perform pretty much to their advertised specs- voltage will drop under load, but with 6s lipo and a 2200kv motor you will naturally need to gear lower than normal (when running 4s lipo with a 2200kv motor for example), so the reduction in work load for the motor (lower gearing = more torque and less current draw) will help the batts somewhat. There are also 25-35c zippies that will work, and the newer versions of the zippies with a blue label on the blue heatshrink (especially for planes I believe), check the dimenions and specs as they might be better. You wouldnt be dissappointed either way for the price, or there are Mikes new lipos in the store that are performing very well (unbranded ones).

Neil thanks for the update on the latest zippies. i have been a MA guy but today was the last straw. sons and i were running the emaxx and erevo - both have MMM/s and 8XLs. towards the end of the run BOTH of the 8000 25C HV's puffed AND one of the 8000HV's in the erevo got hot, melted the battery container and puffed. 3 batteries in 20mins. sadly the one 8000HV which has the 3 year warrantyl didnt puff!!!

I am ordering a pair of the zippies now to see if they can at least last through a race without puffing.

Originally Posted by suicideneil

4s2p A123 fits, but thats only equal to 3s lipo, when what you want is something equal to 4s-5s lipo- thats 10-12 A123 cells...

Zippies perform pretty much to their advertised specs- voltage will drop under load, but with 6s lipo and a 2200kv motor you will naturally need to gear lower than normal (when running 4s lipo with a 2200kv motor for example), so the reduction in work load for the motor (lower gearing = more torque and less current draw) will help the batts somewhat. There are also 25-35c zippies that will work, and the newer versions of the zippies with a blue label on the blue heatshrink (especially for planes I believe), check the dimenions and specs as they might be better. You wouldnt be dissappointed either way for the price, or there are Mikes new lipos in the store that are performing very well (unbranded ones).

[sikeston34m]

Originally Posted by alangsam

Neil thanks for the update on the latest zippies. i have been a MA guy but today was the last straw. sons and i were running the emaxx and erevo - both have MMM/s and 8XLs. towards the end of the run BOTH of the 8000 25C HV's puffed AND one of the 8000HV's in the erevo got hot, melted the battery container and puffed. 3 batteries in 20mins. sadly the one 8000HV which has the 3 year warrantyl didnt puff!!!

I am ordering a pair of the zippies now to see if they can at least last through a race without puffing.

How old are your 8000hv packs? How many cycles old?

Do you know with those 3 packs alone, you're talking $570 bucks?

I can't understand what went wrong though.

According to the website, they should be more than enough.

http://www.maxamps.com/proddetail.ph...O-Pair&cat=172

20C Constant(160 amps)
30C Sustained(240 amps)
50C Burst(400 amps)

Maybe you were drawing more than 160 amps constant! No, wait a second, the MMM is rated for 120 amps constant.

Maybe your Amp Bursts were more than 400 amps. No, wait a second, the MMM is rated for 300 amps Burst.

Oh Oh, it must be your charger! You should have bought a MA charger!

At the bottom of the page you can get a new fresh pair of Lipos and a charger for just $660 bucks.

All kidding aside, I think if you go with zippy's you will see true "C" rating performance.