RX8 on fire

[Ola]

Originally Posted by TekinTeamMgr

I don't recommend giant mah batteries though.

Let's get one thing straight. If a battery is only so large, you can either get punch and voltage, or you can get runtime and less punch.

Lipo batteries are simply electric gas tanks. You can either get a lot of power and less runtime, or less power and a lot of runtime. Take your pick.

Huh?!

Ofcourse, if you got a battery without enough capasity (constant amps) for youre system, it`s not good enough..

But why dont you recomend large mah lipo`s ?
I cant find 1 reason, except weight..

By choosing a large mah battery with enough amp delivery for youre system (mah X **C +headroom since you cant trust the manufacturers), you CAN have more runtime + maximum punch..

If i remember my lipo theory correct, **C is not an amount of power delivery, it`s a factor for calculating it..

[TekinTeamMgr]

C rating is calculated as you describe. You're missing my point. Large Mah packs are often 2 "other" packs in one case. All of this adds up to more resistance,etc.

Have you ever seen a 4s 9000mah 60c pack ? no

I know for fact that batteries can cause esc failures. We've tested it, and seen it. Even though your batteries are rated "here" they may not be performing "there".

Rx8's with blown caps are likely failed due to poorly performing batteries, period.

[BrianG]

Originally Posted by TekinTeamMgr

C rating is calculated as you describe. You're missing my point. Large Mah packs are often 2 "other" packs in one case. All of this adds up to more resistance,etc.

Have you ever seen a 4s 9000mah 60c pack ? no

I know for fact that batteries can cause esc failures. We've tested it, and seen it. Even though your batteries are rated "here" they may not be performing "there".

Rx8's with blown caps are likely failed due to poorly performing batteries, period.

I completely agree with all the except for the statement "Large Mah packs are often 2 "other" packs in one case. All of this adds up to more resistance". Large mAh packs are usually in 2p (or more) arrangement, which would decrease the resistance by half the amount of a "1p" pack.

But, yes, ESC failures where caps are overworked are definitely caused by the battery being pushed beyond its real-world rating, no matter what the C-rating, mAh capacity, or number of parallel cells. It doesn't necessarily mean the pack quality is poor; it could be a setup issue (geared too high, improper components for the vehicle, etc), or any number of other things.

And FWIW, I don't like 2p packs; more connections to have issues...