14 Mar
2016
14 Mar
'16
9:55 a.m.
On Mon, 14 Mar 2016, Doug Ingraham wrote:
The only difference in NiMH and NiCd charging schemes
occurs when rapid
charging them. When rapid charging both types would use a DV/DT technique
coupled with a temperature sensor. The DV/DT is much smaller for NiMH than
NiCd. So if they went to the effort to recharge fast after an event (why
since you could probably do several retracts on a charge) you would not
want to use NiMH replacement batteries. It is unlikely that anything other
than a trickle charge was used with these batteries since it is cheap,
simple and reliable. The trickle current would have been 30 to 50 ma. I
Hello... we're talking about an RK05... no fast or trickle charging at
all. The battery charge circuit consists of a 750 ohms resitor in series
with a D672 diode and the battery, attached between ground and -15V.
Christian