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Acro Wot Foam E battery rating

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Robin Mosedale 105/07/2020 21:08:14
86 forum posts
1 photos

I'm considering the Acrowot Foam e on 3S 2200mAh battery of which I've a decent few.

The ESC is rated 40W

My current batteries are rated 25C giving 25x2200/1000= 55 Watts peak.

The recommended battery by Ripmax is rated 40C giving 88Watt peak.

I'm not intending doing hot dogs but just looking for a point it straight flyer.

Aisha it dicey using 25C in these?

Thanks

Robin

David Holland 205/07/2020 21:29:38
222 forum posts
25 photos

I think,Robin, you may be confusing watts and amps. The esc will be rated at 40amps and the 25c of the Lipo refers to its theoretical continuous current discharge, i.e. it should be capable of delivering 25 x 2.200 (55) amps without too much harm. Your lipos are perfectly suited to the foamy Acrowot and you will find it a totally delightful little aeroplane. Enjoy.

David

Robin Mosedale 105/07/2020 22:14:09
86 forum posts
1 photos

Ahh I realised a few minutes posting that I was mangling units.

I was confused why Ripmax wre being so conservative.

I'll probably obtain a couple of 40Cs but the existing stock will extend the number of flights.

Many thanks again

Richard Clark 206/07/2020 08:09:00
397 forum posts
Posted by Robin Mosedale 1 on 05/07/2020 22:14:09:

Ahh I realised a few minutes posting that I was mangling units.

I was confused why Ripmax wre being so conservative.

I'll probably obtain a couple of 40Cs but the existing stock will extend the number of flights.

Many thanks again

C ratings are almost never true anyway. So just buy the highest C rated battery you are prepared to pay for, it might give you some sort of 'margin'. Though there's not a lot of 'practical' difference between any of them.

Geoff Copping06/07/2020 10:58:59
36 forum posts
3 photos

I fly my Acro Wot foam e using 4-Max 3s 2200 40C's and it flies beautifully.

Robin Mosedale 106/07/2020 12:19:41
86 forum posts
1 photos

Thank you Richard both reassuring and more than helpful.

Thanks

Robin

Robin Mosedale 106/07/2020 12:20:20
86 forum posts
1 photos
Posted by Geoff Copping on 06/07/2020 10:58:59:

I fly my Acro Wot foam e using 4-Max 3s 2200 40C's and it flies beautifully.

That's not the question though I'm afraid Geoff

Bob Cotsford06/07/2020 12:55:21
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8626 forum posts
483 photos

I've flown mine on old 25C packs, there's a bit more sparkle with higher C packs but the 25s are fine unless you want to squeeze every last watt out of it. Generally speaking higher C packs will give slightly higher voltage than low C ones even when being used well below their current limits. The costs are, well, cost, and often a slight increase in physical size.

Robin Mosedale 106/07/2020 13:03:57
86 forum posts
1 photos
Posted by Bob Cotsford on 06/07/2020 12:55:21:

I've flown mine on old 25C packs, there's a bit more sparkle with higher C packs but the 25s are fine unless you want to squeeze every last watt out of it. Generally speaking higher C packs will give slightly higher voltage than low C ones even when being used well below their current limits. The costs are, well, cost, and often a slight increase in physical size.

Excellent, that's just what I hoped

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