Subject:
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Re: nimh batteries
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Thu, 21 Sep 2000 14:51:58 GMT
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Original-From:
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John Hatton <john.hatton@NOMORESPAMuk.airsysatm.thomson-csf.com>
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Viewed:
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717 times
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Would installing a diode (power diode, >3A ?) into the +ve line of the battery pack
be suitable to prevent the power circuitry of the HB from trying to recharge the
nimh cells ?. Or do I actually need to do anything at all ?, i.e. the nimh cells
just won't recharge ?.
Any information would be greatly appreciated.
John Hatton
johnhatton@email.com
John Hatton wrote:
> Should I modify the hb circuit to disable the recharge circuitry if I am using
> nimh batteries or will the circuitry just not recharge the batteries ?, i.e. no
> damage to the cells by using them on an 'as-is' board.
>
> As an extra question to the list in general, does any one know what circuitry is
> used to recharge the nimh batteries ?, I don't want to dismantle my charger to
> find out so any information would be greatly appreciated
>
> Thanks for your help.
>
> John Hatton
> johnhatton@email.com
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Message has 1 Reply:
 | | Re: nimh batteries
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| the issue with nimh is that plain trickle charge is not appropriate. you must remove charge current when the cells are full charge. the HB charge circuit just doesn't do that. i'd really recommend switching back to nicad. fred In your message you (...) (24 years ago, 21-Sep-00, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | Re: nimh batteries
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| Should I modify the hb circuit to disable the recharge circuitry if I am using nimh batteries or will the circuitry just not recharge the batteries ?, i.e. no damage to the cells by using them on an 'as-is' board. As an extra question to the list in (...) (24 years ago, 19-Sep-00, to lugnet.robotics.handyboard)
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