PDA

View Full Version : Does anyone know how to disable the DC's rechargeable circuit?



fremen
01-02-2015, 11:51 AM
Hi guys,

As the title says

Does anyone know how to disable the DC's rechargeable circuit??

Thank yopu very much in advance

Happy New Year!!

skate323k137
01-02-2015, 12:04 PM
I do not, I just replace the coin cell with 2 rechargeable AAA batteries.

fremen
01-02-2015, 12:25 PM
Hi dude,

Thanks for the answer, but the idea is to replace the stock battery by one battery holder and a cr2025.

Un saludo

Wachenroder
01-02-2015, 02:12 PM
I do not, I just replace the coin cell with 2 rechargeable AAA batteries.

That doesn't sound like a bad idea. Whats that setup look like?

skate323k137
01-02-2015, 02:14 PM
That doesn't sound like a bad idea. Whats that setup look like?

I used this guide for my DCs: http://www.snesorama.us/board/showthread.php?34556-Dreamcast-Internal-Battery-Replacement-The-EASY-Way!

Works fine, though if I store the consoles for a few months I have to leave them on for several hours to recharge. As long as I use the consoles somewhat regularly, they stay charged enough to hold the clock.

Wachenroder
01-02-2015, 06:04 PM
I used this guide for my DCs: http://www.snesorama.us/board/showthread.php?34556-Dreamcast-Internal-Battery-Replacement-The-EASY-Way!

Works fine, though if I store the consoles for a few months I have to leave them on for several hours to recharge. As long as I use the consoles somewhat regularly, they stay charged enough to hold the clock.

NICE! I was going to a couple of nickle batteries on Ebay but this might be good alternative.

Thanks for the link

Xian Xi
01-02-2015, 11:04 PM
All you need to do is look at the circuit and analyze it. If it supports charging and battery backup then you will need to disable the charging circuit by removing the flow of power to the battery but it has to be the flow of power that is coming from the charging circuit itself and not the power that is specifically going to the RAM that the battery powers when the system is on.

Usually you have to remove a resistor or diode to disable a charging circuit but might be more.

mookie3three
01-02-2015, 11:19 PM
I wonder why Sega went with a soldered in battery for the Dreamcast when the Saturn had an easily changeable one? Has anyone come across DC's with leaking batteries already?

goombakid
01-03-2015, 02:13 AM
I wonder why Sega went with a soldered in battery for the Dreamcast when the Saturn had an easily changeable one? Has anyone come across DC's with leaking batteries already?

For the DC, it was a rechargeable cell battery whereas the Saturn's battery never really recharged itself.

I've had my DC since about launch. Not leaking, but since I don't play with it as much, the battery tends to stay charged for so long. I don't really care though, since I just set it up to breeze through a game or 2 at a time.

fremen
01-03-2015, 09:45 AM
Hi dudes,

Thanks James, I'll try to discover the circuit.

Un saludo

BladeDancer314
01-10-2015, 11:34 AM
Why not just use a rechargeable ML2032 battery?

That's what I did after I installed a battery holder.

kuze
01-11-2015, 05:38 PM
Why not just use a rechargeable ML2032 battery?

That's what I did after I installed a battery holder.

Wasn't aware of these. Seems like these would be perfect for MVS (and possibly PGM too), without disabling charging circuit?

xsq
01-12-2015, 04:36 AM
Why not just use a rechargeable ML2032 battery?

That's what I did after I installed a battery holder.
This, done it as well, works like a charm. mmmonkey has a tutorial on it. (http://www.mmmonkey.co.uk/console/downloads/Sega%20Dreamcast%20Serviceable%20Memory%20Battery% 20Replacement.pdf)

fremen
01-12-2015, 11:11 AM
Hi guys,

I known that you can replace the stock battery by one ML2032, but itwas a question of money, last time that I did a quest a ML2032 costs 8$, but now (today) it costs 2.53$, so at the end I will order a couple of them.

Un saludo

xsq
01-13-2015, 07:04 AM
Wasn't aware of these. Seems like these would be perfect for MVS (and possibly PGM too), without disabling charging circuit?
Oh, btw.: Been there (http://www.neo-geo.com/forums/showthread.php?203428-The-bad-battery-thread&p=3605509&viewfull=1#post3605509) ;)

kuze
01-13-2015, 09:37 AM
Oh, btw.: Been there (http://www.neo-geo.com/forums/showthread.php?203428-The-bad-battery-thread&p=3605509&viewfull=1#post3605509) ;)

Nice, have you been happy with your results?

xsq
01-14-2015, 09:25 AM
I haven't done it... all my boards are modded with regular (non rechargable) coin cells. Never saw the need to go another route, but it's nice to know there is one.

Metal-Willis
01-15-2015, 11:33 PM
This, done it as well, works like a charm. mmmonkey has a tutorial on it. (http://www.mmmonkey.co.uk/console/downloads/Sega%20Dreamcast%20Serviceable%20Memory%20Battery% 20Replacement.pdf)

Thanks for the link xsq, I think this method looks the cleanest while still retaining the original look. Not that it really matters as its inside anyway haha! This method just seems perfect