Hi

The standard trickle charge time for a battery charging at 1/10 of its capacity is always stated as 14-16 hours so you can work it out from that.

Assuming 14 hours to err on the side of not over charging. your tx will take 48 hours. and the rx will take 35 hours.

These are of course full charges from flat you don't need to do that every time only put back what you think you have used. overcharging dosn't do batteries any good.

Simon