Been doing that this weekend too got a box of fully charged aa's and AAA's
Oh and a new matrass since the Mrs broke it on her side
So I have power if we get a power cut and we can sleep well
Need to dig the power banks out and top them up at some point
Being tight I've been using my solar station in the shed to do all the recharging the longer days are making the 30w panel earn it's keep it's fine through the summer I'm tempted to upgrade it before winter