Does anyone know if a Garmin GPS III Pilot is suppose to have a rechargable internal battery in it for the memory backup or should it be non rechargable. My GPS III Plus has a rechargable - VL1220 (Panasonic) and my GPS III has a non rechargable - BR2032. The unit is second hand and who knows it's history. It has a BR2032 fitted, which is now flat....is that the correct battery?
I know it is very difficult to get the rechargable type and many units have erroniously been fitted with non rechargables.
If it requires a rechargable, where can I buy it?