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Powering a sega cdx with rechargeable batteries

Former Member

So thanks in advance for your help with this! I'm trying to power a Sega cdx off of some 9.6v rechargeable NiMH batteries using one end of a broken Sega ac adapter. The cdx ac adapter outputs 9.5v@1.5A and the batteries are 9.6v with a 2000 mah capacity.

I have almost no knowledge about this and can't figure out why it doesn't power on so any help is appreciated!

 

Oh I found out Ben Heck did this in one of his early podcasts but I would like to keep my cdx as is lol

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    If your 9.6v battery is rechargeable in the first place(depends on your battery's chemistry), you would like to charge it with a voltage that causes a current into that battery equal to about 25% (2.5-3C) or less of the battery's rated output current.
    If the battery is rated to produce 1 amp per hr, you would charge it at aprox 250 milliamps for 4 hrs (give or take the remaining charge still in the battery).
    To produce the charging current, you'll need a source of power having a slightly higher voltage than the battery itself.
    You might need a voltage source in the 11-12v range and a means to limit the current from that source going into the recharging battery.
    If you have a amperage gauge and an adjustable voltage source, you could adjust the voltage source to manually maintain the proper current over the recharge cycle.
    Ideally you'd use the proper charger meant for that battery or at least that battery's chemistry.


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  • 0

    If your 9.6v battery is rechargeable in the first place(depends on your battery's chemistry), you would like to charge it with a voltage that causes a current into that battery equal to about 25% (2.5-3C) or less of the battery's rated output current.
    If the battery is rated to produce 1 amp per hr, you would charge it at aprox 250 milliamps for 4 hrs (give or take the remaining charge still in the battery).
    To produce the charging current, you'll need a source of power having a slightly higher voltage than the battery itself.
    You might need a voltage source in the 11-12v range and a means to limit the current from that source going into the recharging battery.
    If you have a amperage gauge and an adjustable voltage source, you could adjust the voltage source to manually maintain the proper current over the recharge cycle.
    Ideally you'd use the proper charger meant for that battery or at least that battery's chemistry.


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