Maxamps and Neuenergy lipo testing

[lincpimp]

Originally Posted by sikeston34m

160 amps is just the Continous Rating. Those 8000mah packs are good for a 400 amp Burst Rating.

It says so on the website! *rolling eyes*

Only 400 amps, the crt.5 can easily pull that. I think that maxamps are underestimating their cells a bit. 400 amps at 11.1v is about 6hp. A trx 3.3 can make that easy...

[VintageMA]

Well.... here's my very techincal prrof of concept on MaxAmps vs. Neu cells.

I've been running a 4S 5000mAh MaxAmps in my XB8EC and got a 5S 3900mAh Neu pack in preparation for the MMM.

Though I would try out the 5S pack in the MM to see how it would work or i I would send the MM up in smoke. Needless to say it works fine and temp were no higher than 130* (w/ ccbec, fan and no extra caps).

I had lowered the gearing on the XB8 from 17/48 to 15/48 in preparation for the new pack and with the Maxamps 4S 5Ah pack I was getting about 10 minutes before the pack would dump (pack less than 3 months and 10 cycles).

I ran it today with the Neu pack and WOW unbelievable. I ran the car VERY HARD for 15 minutes and the pack hadn't even dumped yet. First time I ever saw a 1/8 buggy pull a full wheelie .

Anyway - you would think with same gearing a buggy on 5S would pull more Amps and last last time with a lower rated pack than on 4S, but the 5S pack only pulled 3.355Ah during the run and took 3470mA back in the charge.
This is compared to the MaxAmps 5K pack dumping around ~3.5Ah in a run and taking back over 4 during charge.

Needless to say - MaxAmps are going up on e-bay after this experience.

[gixxer]

I have a maxamps 6000mah 5s pack and after I bought my polyquest it just doesn't get used anymore. I want to get rid of it since it will probably never be used again but really how much do you ask for a crappy pack?

[VintageMA]

Originally Posted by gixxer

I have a maxamps 6000mah 5s pack and after I bought my polyquest it just doesn't get used anymore. I want to get rid of it since it will probably never be used again but really how much do you ask for a crappy pack?

I've put plenty of Maxamps pack up on ebay - post it for a low pasting fee (like around $15) for 1 week and by the time it sells you will probably make at least $100 on the pack.

[lincpimp]

Originally Posted by gixxer

I have a maxamps 6000mah 5s pack and after I bought my polyquest it just doesn't get used anymore. I want to get rid of it since it will probably never be used again but really how much do you ask for a crappy pack?

Most people on ebay think maxamps are gold. That is due to their overzealous advertising. Good for you! Just start it at 1 dollar and let it go, you will get a price for it!

[lincpimp]

well I ran a few easy cycles on the 3s 5k pack, and another cell puffed. Not only that but the pack would go out of balance overnight, just sitting.

Guess that it is toast, I will remove the puffed cell and make a 2s pack and see how it does. Not looking good though.

Also having issues with the mm in my crt.5 test bed. Not liking the novak hv6.5r motor at all. I have another esc, and will try that out. This is taking longer than I expected...