dead lithium battery never used what can be done

[thwang]

hi all
i need a bit of help building a li-on battery pack ive bought a Canon BP945 battery and charger which is made up from 6 18500s ive stripped the pack down but need help rewireing it up.to be honest i havent a clue with lithium-ion batterys or pcbs so would some one be so kind and draw a diagram please its the same as herulachs battery here
http://www.candlepowerforums.com/vb/showthread.php?t=206959

its wired in 2s3p configuration if that helps

regards thwang

 

[DM51]

Re: building a lithium-ion battey pack

Welcome to CPF, thwang.

I think your thread belongs in the Batteries section rather than the Bicycle one, so I'm moving it there now.

 

[hit4six]

Re: building a lithium-ion battey pack

Hi there ! ! ! How's it going with your battery ?

 

[thwang]

Re: building a lithium-ion battey pack

hi
i,ve put the battery pack back together but it will not charge i,ve had the battery for about 6 months without charging it is there a way to kick start it?
thwang

 

[hit4six]

Re: building a lithium-ion battey pack

Hmm, I'm not sure. Have you checked the voltage of each cell? That's pretty important. If the voltage is as low as 2v per cell it may be too late. Let's hope not, eh? The only other things that I can possibly think of are if something is not connected properly, if the pcb has blown, of if the charger is faulty. It would be good if you could rule those out.

I'm not an expert and I don't know any techniques for 'kick starting' li-ion batteries. Perhaps you'll find some information if you do a google search.

enjoy riding your bike and enjoy your lights ! bye! and maybe you could go to advanced edit and change the title of the thread to something like ' why wont my li-ion pack charge' so people can tell more easily what this thread is about? all the best.

 

[thwang]

Re: dead lithium battery

hi hit4six
had it on charge all day nothing the batterys dead shame i should of charged it when i bought it my fault will have to go out and buy an other one

 

[thwang]

would you beleive it it was a broken wire it the end and i nearly through it ion the bin all the cells are reading 4volts.
thwang