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Battery packs

Old 02-13-2004, 09:08 PM
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3Dreaming
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Default Battery packs

I'm flying a E-Sledge with a Razor 350 in a GWS 350C gearbox 6.6/1 gearing. I have been using E-tech 1200 3s packs with good results, but would like to cut some weight. The E-techs say they are good for 6a continuous, and the Kokam 340 will give 6.8a continuous. My set up pulls about 4a in hover, but will go over 10a at WOT. Most of the time I'm pretty reserved on throttle, but will bump it up for short burst. Will Kokams hold up to this kind of flying? Thanks for the help. Tom
Old 02-17-2004, 05:44 PM
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Dr Kiwi
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Default RE: Battery packs

I'm surprised you haven't killed your E-tecs if you are pulling as much as 10A out of them (with 3s 1200, the rated 6C [7.2A] is about as hard as you should push them). You really should have 3s2p 2400 (156g). If you read Steve Neu's tests of Kokam 340's you'll see he was disappointed in their performance - at 20C (6.8A) he was only able to get 200mAh out of them, and his conclusion was that they may be okay for 10C (3.4A) but not for much more. This means you'd need 3s3p 1020 (90g) with the Kokams to be sure of getting good duration at your 10A draw.

Cheers, Phil
Old 02-17-2004, 08:31 PM
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Jason W M
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Default RE: Battery packs

You should try the Thunder Power 1300s. Theyre capable of 9 amps continuous and bursts up to 13/14 amps are no problem. Better power and life than the ETec 1200s!

You could also use the new Thunder Power 830s. Capable of 8.5C continuous (7 amps) with bursts to 10 amps being no trouble at all. A 3S pack weighs less than 2 ounces. Flight times would be somewhat short though (around 2/3 what you get with the 1200s).
Old 02-17-2004, 08:35 PM
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Default RE: Battery packs

Most of my flying is below 1/2 throttle, which is in the 5a range, it will hover at about 3.5a. I rarely get to full throttle. I would like to get my weight under 10 oz. Tom
Old 02-18-2004, 11:09 AM
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Default RE: Battery packs

LIPOLYS LOOK IMPRESSIVE!
WEIGHT WISE!
PERFORMANCE WISE!

PRICE WISE! I THINK WE ARE HAVING OUR PANTS PULLED DOWN
EVEN DICK TURPIN HAD THE DECENCY TO WEAR A MASK

ITS FUN TO FLY FUNFLY
Old 02-19-2004, 12:43 PM
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Default RE: Battery packs

YOU WANT CHEAP LIPOLY`S BUY A POLAROID TORCH THE FLAT TYPE,
YOU CAN FIND THEM IN BARGAIN SHOPS!
RIP THE BACK OFF AND GUESS WHATS INSIDE FOR A POUND ?????

ONE MANS GARBAGE

ITS FUN TO FLY FUNFLY

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