Fukuyama Batteries
11-10-2004, 10:59 AM
#5956
Originally posted by JDXray
I think if your leaving them for a long time you charge them up for like 1000secs and then store them i might be wrong someone should double check me.
Jon
I think if your leaving them for a long time you charge them up for like 1000secs and then store them i might be wrong someone should double check me.
Jon
These NiMH cells are acting like NiCD, but NiCD likes to sit at 0.0v where NiMH likes to be discharged to 5.4v then sit.
Hope this helps some confusion.
JF
11-10-2004, 11:04 AM
#5957
Originally posted by jkerr0043
The old 3000's you wanted to store with 2/3 to a full charge in them. But the newer cells will loose runtime and power if you do this. Howard also made a good point about taking bars off of the cells during long storage. This will keep them from drawing off each other.
The old 3000's you wanted to store with 2/3 to a full charge in them. But the newer cells will loose runtime and power if you do this. Howard also made a good point about taking bars off of the cells during long storage. This will keep them from drawing off each other.
True that buddy... we're on the same page
The only problem with removing bat bars is that you're heating the core cell up again and possibly risk the damaging the cell and you might not have a good solder joint once you go to re-apply the bar. I would suggest if you go this route, you suck all the old solder off the contacts before you store them. This way, you have a nice clean surface to work with again. This same procedure applies if you send cells back to Fukuyama HQ please!
John
11-10-2004, 11:49 AM
#5958
Originally posted by John Fontaine
Define a long time. I've discharged cells down to 5.4v and let them sit that way for 4 months. I've charged them up, woken em up and they rock just like new. I would say 6+ months you might want to store them with some charge, but tests have shown that cells perform slightly better left without charge. (by that, I mean 5.4v discharge than store)
These NiMH cells are acting like NiCD, but NiCD likes to sit at 0.0v where NiMH likes to be discharged to 5.4v then sit.
Hope this helps some confusion.
JF
Define a long time. I've discharged cells down to 5.4v and let them sit that way for 4 months. I've charged them up, woken em up and they rock just like new. I would say 6+ months you might want to store them with some charge, but tests have shown that cells perform slightly better left without charge. (by that, I mean 5.4v discharge than store)
These NiMH cells are acting like NiCD, but NiCD likes to sit at 0.0v where NiMH likes to be discharged to 5.4v then sit.
Hope this helps some confusion.
JF
11-12-2004, 06:59 PM
#5962
all i can say is that FUKUYAMAS are the best. Today i couldnt finishing up charging my packs for my run, so i took it off at aroun 2400mAh and i still was getting tons of punch and still took 1st. 
THANKS!! and keep the work up. Also the ETA on new cells 
Jon
THANKS!! and keep the work up. Also the ETA on new cells Jon
11-12-2004, 10:28 PM
#5964
Question
Hey guys,
I found this interesting thing today. A friend of mine put together two set's of 6 cell battery packs from another matcher. I used my pro trak to cycle his packs and found that the two cells on the ends of both packs lacked in voltage during the discharge. I used the monitoring leads of the charger and saw that average voltage is .06 to .08 lower than the other 4 cells............This was consistant on both packs. Do you think it could be that he had to solder his battery bars to the positive and neg. for hard wiring? Could have been the extra heat that those cells recieved during soldering?
Let me know what you guys think.
ronnie
I found this interesting thing today. A friend of mine put together two set's of 6 cell battery packs from another matcher. I used my pro trak to cycle his packs and found that the two cells on the ends of both packs lacked in voltage during the discharge. I used the monitoring leads of the charger and saw that average voltage is .06 to .08 lower than the other 4 cells............This was consistant on both packs. Do you think it could be that he had to solder his battery bars to the positive and neg. for hard wiring? Could have been the extra heat that those cells recieved during soldering?
Let me know what you guys think.
ronnie
11-12-2004, 10:45 PM
#5965
Re: Question
Originally posted by picco007
Hey guys,
I found this interesting thing today. A friend of mine put together two set's of 6 cell battery packs from another matcher. I used my pro trak to cycle his packs and found that the two cells on the ends of both packs lacked in voltage during the discharge. I used the monitoring leads of the charger and saw that average voltage is .06 to .08 lower than the other 4 cells............This was consistant on both packs. Do you think it could be that he had to solder his battery bars to the positive and neg. for hard wiring? Could have been the extra heat that those cells recieved during soldering?
Let me know what you guys think.
ronnie
Hey guys,
I found this interesting thing today. A friend of mine put together two set's of 6 cell battery packs from another matcher. I used my pro trak to cycle his packs and found that the two cells on the ends of both packs lacked in voltage during the discharge. I used the monitoring leads of the charger and saw that average voltage is .06 to .08 lower than the other 4 cells............This was consistant on both packs. Do you think it could be that he had to solder his battery bars to the positive and neg. for hard wiring? Could have been the extra heat that those cells recieved during soldering?
Let me know what you guys think.
ronnie
11-13-2004, 09:33 AM
#5966
Tech Rookie
i'm thinking of getting a battery zapper and i was wondering on how often do you zap cells for maintenance? is it possible to zap a cell more than once? does it really help? what can it contribute?
11-13-2004, 09:38 AM
#5967
Originally posted by fu|| thrott|e
i'm thinking of getting a battery zapper and i was wondering on how often do you zap cells for maintenance? is it possible to zap a cell more than once? does it really help? what can it contribute?
i'm thinking of getting a battery zapper and i was wondering on how often do you zap cells for maintenance? is it possible to zap a cell more than once? does it really help? what can it contribute?
11-15-2004, 06:09 AM
#5968
Originally posted by fu|| thrott|e
i'm thinking of getting a battery zapper and i was wondering on how often do you zap cells for maintenance? is it possible to zap a cell more than once? does it really help? what can it contribute?
i'm thinking of getting a battery zapper and i was wondering on how often do you zap cells for maintenance? is it possible to zap a cell more than once? does it really help? what can it contribute?
Fukuyama has patented one of a kind battery zappers. No one in the industry has them. Do not to try and copy what Fukuyama has done so far. Most likely you'll just end up just wasting money on cells that you have destroyed.
Let Fukuyama provide the matched and zapped cells. Not only will it be cheaper for you, but you'll have years and years of research and a finished product in your hands without the headache!
www.fukuyamaracing.com for more info.
John
11-15-2004, 10:51 AM
#5969
Daniel/Stephen,
Ran the batteries Sunday and as always unbelieveable. Thanks again!
Hope everything is going well with the little one Big Daddy Dan!
Ran the batteries Sunday and as always unbelieveable. Thanks again!
Hope everything is going well with the little one Big Daddy Dan!
