Can you recommend component codes for the 3.3 regulator? Then the regulator is connected to the battery holder and +3.3 and +5v + ground on the GPIO pins?
karlkiste wrote:The batteries should not be affected. If 5V and 3.3V rails are wired to 3.3V both, the LDO shouldn't consume more than a few milliamperes (max. 10 mA says the datasheet). Those can be saved by just cutting both the little wires on the LDO. Desoldering then has only impact on the weight, not on the current draw. The weight is not very high - I would estimate that shaving the GPIO pins will have a bigger effect.daveake wrote:The risk of damaging the Pi is minimal and you certainly don't want to risk losing your payload because the batteries died before you got to it.
But, I agree, with a good, powerful, regulated soldering iron with a short, wide, hot tip, desoldering shouldn't be a problem. Components tend to die when soldered for too long, not too hot. And, the LDO is broken anyway. It's the surrounding components that count.