I have an (old but still worth keeping) Fuji Finepix 4900 which
uses the 3.7v NP80 type Lithiunm Ion battery. The problem is that
even with a new battery freshly charged the shooting capacity
is pretty bad.
I'd like to make an external battery pack to run the camera from 4 x AA sized, high capacity, NiMH batteries which would give 4.8V so I'll need to drop the
voltage to 3.7V as efficiently as possible. I'm going to use a dummy battery to pick up the contacts inside the battery compartment and run wires to the pack.
I'd like to know the best way of doing this with the minimum of components.
The camera is rated at 5V 4W (from the plate on the camera bottom).
Any help would be appreciated - not too technical, practical if possible.
uses the 3.7v NP80 type Lithiunm Ion battery. The problem is that
even with a new battery freshly charged the shooting capacity
is pretty bad.
I'd like to make an external battery pack to run the camera from 4 x AA sized, high capacity, NiMH batteries which would give 4.8V so I'll need to drop the
voltage to 3.7V as efficiently as possible. I'm going to use a dummy battery to pick up the contacts inside the battery compartment and run wires to the pack.
I'd like to know the best way of doing this with the minimum of components.
The camera is rated at 5V 4W (from the plate on the camera bottom).
Any help would be appreciated - not too technical, practical if possible.