Hyena wrote:Hi Mark,
Did your lipos die all together after that period of time or just lose capacity ?
I'll probably be riding alot over the next few months and then only occasionally after that, but it'd be nice if I could still get ~10ks out of it after a year.
I was impressed with the life of the pack today - the wattsup meter showed I'd used 7ah and it still had a bit of life left in it.
The frame is aluminium but yes the forks are steel.
After an trip over the handlebars while playing with regen braking I made up a bit of a torque arm. I'm planning to make something bigger and stronger in the future, but this is better than nothing in the mean time.
TPA wrote:^^ I second that, Who, Where? ^^
A-HA! I think I found them! Hong Kong and Free shipping to boot!
http://cgi.ebay.com/RC-Lab-4000mah-22-2 ... 1|294%3A50
Hyena wrote:Thanks Kim.
I've been following your build for a while too, on OCAU initially then here. Very impressive!
Hyena wrote:I like hub motors for their simplicity but I'd like to make another more dedicated off road chain drive bike. Basically an electric dirt bike.
I have THIS little dirt bike but can't ride it anywhere locally because of the noise. I'm just waiting for the engine to pack it in so I can convert it to electric
Hyena wrote:How are you planning to charge the multiple lipo packs ?
Hyena wrote:Would you happen to remember what thread it was where methods was explaining using a power supply as a charger ?
Mark_A_W wrote:Almasi, just be aware that Lipos (particularly cheap ones) last about a year, maybe two at the outside.
They die just sitting on the shelf.
My lipos booster pack lasted 14 months. Balanced at every charge, discharge was around 3c peak (they were supposed to be 15c).
Almasi wrote:I may use those lipo for my next built...but 1 year life when you only ride your bike 4 or 5 month a year
AussieJester wrote:Almasi wrote:I may use those lipo for my next built...but 1 year life when you only ride your bike 4 or 5 month a year
Nothing stopping you from discharging/charging during the months you dont ride to prolong their life rather than just leave them 'sitting on a shelf'
So if I discharged them and charge them every month it will help them live longer, is that right?
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