How to modify a walkie talkie to be charged direct from wall socket?

I have a Motorola Talkabout T9550. I do not need it to be mobile and I do not care about warranty. Need to modify it, so that it uses electric power direct from the wall socket. Need to talk long time with it.How to modify a walkie talkie to be charged direct from wall socket?
dangerous to do so. UL never tested it for that. You could cause a fire.How to modify a walkie talkie to be charged direct from wall socket?
I agree with the previous answer... dangerous, do not do it!

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