Originally Posted by EAMotorsports
The ONLY thing that charging at higher amps will do is: Charge the battery faster, cut down on the life of the pack (from 300 cycles to 200 cycles maybe all speculation), and it will warm the pack internally which will decrease IR and increase voltage. But with all the big races checking battery temp it will not help as it wont pass tech.
The heat is the only reason it increases the voltage and lowers IR. If you let the pack cool to room temp and check it it will be the same as if you charged it at 5 amps. I have yet to see a charger that has any special voodoo built in that will charge and make a battery faster without using heat.
Ive been charging at 40 amps since December with the ICharger Duo 4010 came out. I raced every week all the way up till the birds. I only keep two packs to my name at a time. I practice and race on those two packs every week in TC. Those packs are still good today as they were new in December. The 40 amps thus far has not shown any ill effects at all. Generally when I go to the track its 4-5 charges per pack per day. There were some 3 day races in there too.
The pack I won the birds with was charged at 40 amps every single charge. I used it in both 17.5 and 13.5 TC all week in every practice and every race. Then I sent it to Josh Cyrul and he did the same with it in Modified and 13.5 sedan which he won both classes. That battery was put through hell and still cycles the same as it did when it was new a week before the birds.
The key to keeping batteries fresh is USING THEM! And making sure they dont sit with a full charge or zero charge in them. Not being used is a Lipo's worst enemy I have found.
That means the ROAR champ is a cheat! The rules do not allow charging at more than 1C! He should have been dq-ed!
It is very sad to see people are pushing the limits again on lipo's. Although there are knowledgable people around and charging at higher currents is not directly unsafe, it just takes one bonehead attempting something stupid to gain an edge and there is a lipo fire. And they are not nice!
If we all just use the rule and charge at 1C (or change it to 2c to save time) all this heating of pack tomgain an edge would not exist. Now everybody is more or less forced to charge at ridiculous currents... Especially in the 'stock' classes where the new guys with the least knowledge of what is fast and what is dangerous are....
Have fun with 40 amps. Thanks for making life more difficult than it should.