Why did NEC go with such a small battery for the PC-8300?
I've just rebuilt my PC-8201a pack and it had 4 x AA Ni-Cd's originally.
I replaced these with 4 x Eneloop AA's (2000mAh) & lowered the charging
resistor value so it will charge them in a reasonable time-frame, ie
overnight.
Philip
On 24/07/2020 3:40 pm, Gary Weber wrote:
Brian,
Those are precisely the same batteries I've been using to build up
refurbished 5-cell rechargeable packs for my machines also. They've
been working very well.
I got my battery sets off of eBay and they arrived within 10 days or
so. They still sell them there so you'll be able to find 'em.
Gary
On Thu, Jul 23, 2020 at 8:34 PM Brian K. White <b.kenyo...@gmail.com
<mailto:b.kenyo...@gmail.com>> wrote:
My PC-8300 came with a rechargeable battery pack that had a tiny
60mah
battery originally, a 5 button cell nicd hot-glued in the middle,
with a
couple diodes & a resistor and it's own barrel jack to charge the
pack.
All corroded and dead of course.
I determined that you could fit 5 x 1/2AA nimh cells in the same
case,
same voltage, same charger, and get 800mah instead of 60.
1/2AA is a size that exists, but is pretty hard to find.
I found this on Amazon, welded tabs already, and even sold in sets
of 5,
exactly the number needed, perfect.
http://amazon.com/gp/product/B07ZNZ535F/
Not so perfect, it took over 4 months to arrive (March 17 to July 21).
But they did finally arrive, and the size worked out.
Everything fits, and it's easy to replicate the original wiring just
moved around.
https://photos.app.goo.gl/JRVp71Govw49PXaM6
--
bkw
