Regulating current from dc charger

[rodifications]

Just registered today...............Thanks for having me on .
I've built a 72 volt bicycle chopper . Due to insufficient fund-age I have not been able to buy a 72 volt charger. I do however have a 36 volt 25 amp charger which turns my twelve, twelve volt, five amp hour batteries into little balloons with electrical terminals . Oh and renders them useless. I'm not totally sure but I think there might be a way to limit the current from this charger. Oh sorry........................I split the pack in half then use two charge ports (banana plug male and female) so its a ten amp hour pack but I'm still unsure how much current I need .Very sure that twenty five amps is way to much. Any help would be greatly appreciated because my battery pack has been without charge for five days now and I know that's not good to discharge them and just leave them in that state. I was using a soniel one point five amp but it seemed to work it to hard..................not sure but it quit working five days ago. <a href="http://s1012.photobucket.com/albums/af249/rodzin/?action=view&current=CHOP1.jpg" target="_blank"><img src="http://i1012.photobucket.com/albums/af249/rodzin/CHOP1.jpg" border="0" alt="Photobucket"></a>**broken link removed**

 

[mneary]

Yes, 25A is too much for a 10AH battery. It would be fully charged (and very hot) in 20-30 minutes.

I would try to limit the current with a lamp, such as 12V automotive headlamp, in series. It is possible that the charger (it it's "smart") will prematurely think the battery is charged and cut off too soon.

Although the links didn't work, I cut and pasted.

 

[Hero999]

Please split your post up into paragraphs and attach the images rather than posting some broken links to photobucket.

Yes you are using too much current.

There is really no alternative but to buy the propper charger or use larger batteries.

Trying to save money often ends up costing you more. It'll probably cost you more to replace all the batteries than it would've done to have bought the correct charger in the first place.