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Old 08-31-2005, 01:29 AM   #1
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Default M0nged Battteries

Hey GUys, I got some new IB batteries but there not the issues.

I have some old GP3300 LRP and Atlas Packs

They seem to have no punch. Yes i know they are old, and have internal resistance through the roofffff. But i was wondering wether i could do anything to get my packs in some sort of better order, bit more go go for club racing....Getting a CDR 5000 in a few days if that helps whatever i can do...
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Old 08-31-2005, 03:27 AM   #2
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Short and long answer, no. Once they are old and flogged they are old and flogged.
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Old 08-31-2005, 03:37 AM   #3
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Once they are old, well.... they are old, but if they haven't been treated like total trash, I reckon you should give the Spintec battery manager(BatMan) a try.

It will make your newer cells happy too !!!

$94 USD from www.precisionrc.com

www.spintec.nl - Check it out
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Old 08-31-2005, 10:08 PM   #4
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very old cells hate to be waken up !! . remove the bars clean the cells for better connections re mount the bars ,, tray them on a equalizing tray .. charge them up and you might get lucky .... if that dont work . you can always go here ... www.fusionbatteries.com .... they have excellant deals ,,!!!
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Old 09-01-2005, 01:42 AM   #5
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Old cells,the bottom line is that they are still old cells...

I've tried the Spintec Batman ,and it could some how regain some of it ' youth' . The batman has this Flex dischage thing that does some thing to the internal structure of the cells.It claims to reduce IR.

Give it a try and your old,new or future cells will thank you for that.I'm getting another Batman off a friend.Good stuff.
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Old 09-01-2005, 02:08 AM   #6
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Default My Method

THis is my metohod of keeping cells in order, a few of the big reps, SMC and Our Own local Matcher FERAL have said its good for my new cells

Charge batt 6amps 4mv per cell
After run discharge at 30amp to 5.4v for the pack(linear on a cdr 5000)
Slap em on the smart tray down to .9v per cell
wait two hrs,
Slap on the novak for 30sec again just to get em equalized good before chargin
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Old 09-01-2005, 05:14 AM   #7
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I had some old underperforming GP3300 packs.
They had been used for at least one race meeting a week for 6 months, typically used twice in each meeting.
Internal resistance was high, and discharge voltage was low, as measured on a Pro-Trak.
On track performance was poor.

I discharged/equalised them to 0V, (Nothing to lose), and cycled them again, charging at my usual 6A, but the cells were no better or worse.
So I discharged to 0V on an equaliser tray and then stuck them on a shelf, meaning to dispose of them in a "green" way at some time.

After 6 months, I desperately needed a pack for some reason, so picked up the pack on the shelf and charged it up.
It worked well, so I measured it again on the Pro-Trak.
IR was down, Voltage was way up... nearly to where the pack was new.
The pack has now been in use again for 4 months and has been fine.

Now I have no explaination for the above, but its worth just discharging them and sitting them on a shelf for 6 months.
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Old 09-01-2005, 05:17 AM   #8
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mmmm... Batteries are like people, we both like holidays
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