Lightweight racing batterys

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RonniB
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Re: Lightweight racing batterys

Post by RonniB »

Charging is fine both with Nc and Gsxr genny, tried both. never balanced mine, just use an optimate in layup periods.

As for the anderson plugs, I don't think they have any place whatsoever anywhere near my bike, ever. The pins are held very loosely in the housing and I saw localised micro-welding on the pins from bad connection. This is due to the design, not how you put them together.

You are better off using an old-school junctionbox (two screw terminals in a plastic box, basicly) and ring terminals on the wires.

Ronni
80sman
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Re: Lightweight racing batterys

Post by 80sman »

Thanks Ronnie, great info.
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fourfingers
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Re: Lightweight racing batterys

Post by fourfingers »

Cheap anderson plugs:
http://www.hobbyking.com/hobbyking/stor ... duct=15422

I would personally go with any high power RC conector rather than the Anderson.

I am using 4mm connectors in my big e-powered helis that can draw over 60A (48v) with no probs.

Here are some others that may be usefull.
150A rate
http://www.hobbyking.com/hobbyking/stor ... duct=12887

80A rate (I have some sets of these)
http://www.hobbyking.com/hobbyking/stor ... oduct=9625

4mm Gold connectors (ready available at any local rc shop)
http://www.hobbyking.com/hobbyking/stor ... Product=67

hope this helps
lukemillar
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Re: Lightweight racing batterys

Post by lukemillar »

Sorry to revive the thread...

Has anyone run one of the Durbahn batteries with a total loss setup?

Cheers
Luke
backys
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Re: Lightweight racing batterys

Post by backys »

lukemillar wrote:Sorry to revive the thread...

Has anyone run one of the Durbahn batteries with a total loss setup?

Cheers
Luke

On carb bikes they last a day (RVF 400 no lights on 8cell 4.6AH)
On your 675 an 8cell 4.6AH should lasts 20-25min(no lights on)
On an RSV Mille an 12cell 6.9AH lasts 20min (no lights on)
And they charge in 15min (between sessions)

I made my own batteries and I've test them on the bikes mentioned above among others on track days.
Cheers!!!
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Drunkn Munky
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Re: Lightweight racing batterys

Post by Drunkn Munky »

How do you charge them? i thought you needed some special charger that can balance them too
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fourfingers
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Re: Lightweight racing batterys

Post by fourfingers »

Go to your nearest radio control shop, there are lots of chargers that can charge (balanced or unbalanced) liFePo4 A123 cells
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fourfingers
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Re: Lightweight racing batterys

Post by fourfingers »

Or try at flybay... plenty of them
backys
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Re: Lightweight racing batterys

Post by backys »

The bike charge them.No problem with that.And very fast also (5min riding is enough)
I also have charge some with my Accumate with no problem at all.
The balancer helps to take the maximum of your battery meaning that all the cells will charge the same voltage.
Although I've checked my batteries after 2 years of everyday usage and the cells where charged the same and with no use of a balancer. 8-)

I've run several tests before starting to make cells for friends.
Lots of deep cycles ,discharging and charging again,cold,heat and so on ...

LifePo seems to work perfect in every condition.
And the good think is that every year they get cheaper :grin: (but still expensive for most of the people)
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fourfingers
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Re: Lightweight racing batterys

Post by fourfingers »

They where asking about a total loss system, so no genny charging. A r/c charger can charge them in 20min(balanced), good for track days. My accumate will take 5 hours to charge an 4Series2parallel 14,4v 4.6AH...
Apart from that you can also get silly charge/discharge graphs 8-) on your computer with some R/C chargers... individual cell voltage, amps,watts...

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