NMS8250 battery(?)

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By Alexey

Guardian (1602)

Alexey's picture

10-10-2017, 16:40

There's probably a reason why NiCD and NiMH charges are separate devices. Maybe charging cycles are different.

By bore

Expert (96)

bore's picture

10-10-2017, 17:10

Yes, they have different charge characteristics, but this only comes into play when you want to fast charge the batteries.
This doesn't matter when it is used like in the NMS8250 since the charging current will be around 2 - 12 mA and no measurement of voltage or temperature is done.

Another reason you might not want to use NiMH for the RTC battery is that it has a higher discharge rate, but if you use your MSX every now and then it shouldn't be a problem.

By Zilogger

Resident (39)

Zilogger's picture

15-10-2017, 14:40

In the Netherlands is selling NiCD batteries prohibited.
NiMH is allowed to sell in the Netherlands.
And the discharge of the NiMH batteries is marginal low.
I'm using special made (1/3 AAA NiMH ) x 3 spotwelded battey pack with axial spotwelded wires.
It fits perfectly in a NMS 8250/55/80.
Works fine

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