I was gifted an X-Box 360 a few years back.
Not being a gamer my-self I figured the grand-kids could use it.
Problem: Seeing as the G-kids lived in other towns and didn't visit that often, the batteries in the controllers would be dead when they came to use it. (Unhappy G-kids)
Step 1: First Solution.
I tried the usual ,regular carbon batteries, then rechargeable batteries.
No go. they would be dead time they came again. Of course I would for get to remove them after kids went home. Try rechargeable batteries they would also be dead by time they were needed.
On to step two.
Step 2: Rechargeable Pack.
Now lets try a rechargeable pack.
Order a Ni Mh 4800mAh rechargeable pack on line.
As useless as the rechargeable double AA's, discharge over time as well or forget to recharge them.
On to step three.
Step 3: Step 3
Solution; guess the kids will just have to plug the remotes into the console.
Problem: wire to short.
On to step four
Step 4: Step 4
Solution: add extension USB cable
Problem: keep tripping over wires between controller and console.
Step 5: Step 5
Then it struck me?
Solution: If controllers work with console with out the battery packs, why not get Li-ON battery pack that don't loose it's. charge over time.
Problem: No such item.
this is getting kinda drawn out, step 6
Step 6: Enter Li ON
Solution: The portable phone chargers put out 5 volts why not use a couple of them.
Got my butt over to the Dollar Store bought a couple of cheep phone chargers. (wasn't gonna buy one of those expensive ones in case it didn't work.)
Best 8 bucks spent on this
Step 7: It Works
When I got back from the dollar store had to charge up the Phone\battery packs as per instructions.
After a few hours all charged up and ready to try out one at lest one. I hooked up the charging cord to the controller plugged it into the battery pack turned on the controller and It worked. Turned on the X-Box as well.
I now took the other battery pack and taped them together. Put them away till the G-Kids came over. They were impressed and happy. Grandpa was the HERO of the day.
Step 8: Summery
I don't know if this method will work with other systems but your own to try.
I find this the best and probably cheapest way to keep charged controllers on hand. They don't need recharging as often ans last a lot longer the regular or ni-cad batteries.
The cord could be shorten if you want but I like the original length better. (keeps the kids apart so no fighting)
I'm going to take a few more pictures and add them later.
Thanks for reading.