A501 memory expansion advice

keitha1200 · 11 May 2012, 04:03

I've got a A501 commodore memory expansion and I'm wonder if:

Would it be easy/possible for an amateur (like me) to remove the old rechargeable battery and replace it with one from a PC motherboard? (coin holder)

As the old battery is a rechargeable! what coin battery could I use? as nearly all modern coin batteries aren't rechargeable. Or is there a simple hack to get around the recharging problem.

kipper2k · 11 May 2012, 04:33

Quote:

Originally Posted by keitha1200

I've got a A501 commodore memory expansion and I'm wonder if:

Would it be easy/possible for an amateur (like me) to remove the old rechargeable battery and replace it with one from a PC motherboard? (coin holder)

As the old battery is a rechargeable! what coin battery could I use? as nearly all modern coin batteries aren't rechargeable. Or is there a simple hack to get around the recharging problem.

Check out amigakit for replacement batteries. You can buy battery holders that you solder to the board and slide the replacement battery into it. The old ones are relatively easy to remove, use flux to wet the area, heat up your iron and don't tug when trying to remove or you may lift a pad.

ajk · 11 May 2012, 08:12

There are also rechargeable coin cells, like the ones used in some of the Blizzards. VL-2020 if I remember the type correctly. Would still have to check if the recharge characteristics match the NiMH battery close enough though.

Tiago · 11 May 2012, 17:55

Yes, but is better to put a diode to avoid a recharge on a non-rechargeable coin.

I did it some time ago, where are the schematics and photos:
http://www.lobodias.com/commodore_am...ing_c_cell.htm

my soldering skills were not the best :-) but it worked fine.

AmigaFriend · 11 May 2012, 18:01

Quote:

Originally Posted by Tiago

Yes, but is better to put a diode to avoid a recharge on a non-rechargeable coin.

I did it some time ago, where are the schematics and photos:
http://www.lobodias.com/commodore_am...ing_c_cell.htm

my soldering skills were not the best :-) but it worked fine.

LOL. A501 Real bug

11 May 2012, 04:03	#1
keitha1200 Registered User Join Date: Feb 2012 Location: Tayside Posts: 181	A501 memory expansion advice I've got a A501 commodore memory expansion and I'm wonder if: Would it be easy/possible for an amateur (like me) to remove the old rechargeable battery and replace it with one from a PC motherboard? (coin holder) As the old battery is a rechargeable! what coin battery could I use? as nearly all modern coin batteries aren't rechargeable. Or is there a simple hack to get around the recharging problem.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
A500: Supra Ram 1MB + A501 expansion	OscarBraindeaD	support.Hardware	4	03 May 2013 15:51
For Sale: A500 with A501 Expansion.	PowerPie5000	MarketPlace	0	15 November 2010 13:43
A501 expansion	craggus2000	support.Hardware	7	15 October 2010 16:41
How do I get the metal shield off an A501 memory expansion?	absence	support.Hardware	7	27 December 2009 23:32
Amiga A501 Expansion board, cost?	Vardelith	MarketPlace	3	20 July 2003 02:08

11 May 2012, 08:12	#3
ajk Registered User Join Date: May 2010 Location: Helsinki, Finland Posts: 1,341	There are also rechargeable coin cells, like the ones used in some of the Blizzards. VL-2020 if I remember the type correctly. Would still have to check if the recharge characteristics match the NiMH battery close enough though.

11 May 2012, 17:55	#4
Tiago Registered User Join Date: Oct 2011 Location: Estoril/Portugal Age: 47 Posts: 115	Yes, but is better to put a diode to avoid a recharge on a non-rechargeable coin. I did it some time ago, where are the schematics and photos: http://www.lobodias.com/commodore_am...ing_c_cell.htm my soldering skills were not the best :-) but it worked fine.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)