My understanding is that the idea was to go for simplicity. To add more sophisticated features would add significantly to the cost for the charger. NiMH cells are fairly robust, and do not need the special monitoring that, for example, lithium batteries do. And the charging current is deliberately kept low, so that in the "worst case" scenario (trying to charge a fully charged battery) the cells would not be destroyed, but merely heat up, causing the temperature sensor to shut off the charging.

And, by choosing NiMH type cells, it's possible to replace them in the field with conventional non-rechargeable alkaline cells, so you can get back on the air with what's likely the world's most universal battery cell type.

73 de Ray
K2ULR

On Jan 29, 2013, at 1:35 PM, [email protected] wrote:

Why is the available charger for the KX3 batteries so primitive? Why can't it stop charging when the batteries are fully charged? Why can't it start charging when the batteries need charging? This should be possible in software? Thank you.

K6CG

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