cat eye battery question

red eye
red eye Posts: 264
edited April 2009 in MTB workshop & tech
i have some old hl rc230 which has a massive 6v 4.2ah sealed lead acid lantern battery, i remember that the expensive headlamps had a stick battery....wich got me thinking of something to make :idea:

i have a radio controlled car which has a 7.2v 3300mah 6 cell nimh battery.

my electrical knowledge is not so good so am i right thinking that 5 cells will make a 6v 3300 battery. which will give less runtime but will work. i know that my cateye battery charger will be useless and i'd have to bodge a case of somesort with a tamiya connector (which i'll get with a new battery pack)

the idea is to have a small size lightweight battery that will get me home after work with out being runover or stopped by the police also for fast riding when i have an urge for a blast down some unlit canal routes.

thanks for reading

Comments

  • Dazzza
    Dazzza Posts: 2,364
    Why not run them overvolted to 7.2v, lumicycle overvolt their systems i believe they run 14.4v when their bulbs are 12v, shortens the life but not by any major amount.

    So long as the bulbs are easily replaceable it shouldn't be a problem and as a bonus you get a brighter light. ;)
    The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it.
    Giant Anthem X
  • redvee
    redvee Posts: 11,922
    Try Maplin. I got a new SLA battery for my Smart light after I left it half charged over the summer. At the time Maplin price was less than trade on the battery, doubt if that is the case now.
    I've added a signature to prove it is still possible.
  • red eye
    red eye Posts: 264
    i did it 7.2 and i now get lo9nger run times it charges quicker due to a better charger and a brighter whiter light. and it took no more then 5mins to knock up most of that time i was waiting for the iron to heat up :D

    next mod is to beef up the wires to match the ones on the battery

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