In my house I use a LOT of little gadgets. Most of these gadgets use batteries.
Batteries are pricey, and rechargeable batteries are even more expensive, but in the long term they can save a lot of cash.
I've used various Energizer and Duracell chargers and batteries and charging docks in the past, but you can easily wind up paying over $4 per battery. Don't get me wrong, $4 rechargeable batteries can save money in the long run, but two remotes and one video game controller will set you back over $20 for 6 batteries and you still need to buy backups for when these are charging!
Speaking of charging, the docks I've used in the past have only charged 2-4 batteries at a time. So, hopefully you don't have two kids playing Xbox and both controllers die at the same time.
Recently I picked up EBL batteries with an 8 bay charger for my home on Amazon for under $20.
Along with the above bundle of the 8 bay dock, 4 AAs and 4 AAAs, I also picked up an additional pack of 8 AAs for another $17. (The original 4 AAAs were 1100mAh. The original 4 AAs and the additional 8 AAs were 2800mAh, meaning the AAs hold way more juice and cost a bit more)
I've been using these batteries and dock for a few months now, and here is the breakdown:
The dock is sturdy and doesn't feel cheap at all
The batteries have a vinyl type feel to them that I inexplicably enjoy...
8 bay charger is more than enough to make sure every battery is charged
The batteries last a LONG time
Charging is quick and reliable
Batteries come with cases, which keeps charged batteries organized
Batteries must be charged in pairs, but they're usually used in pairs and there are 8 bays in the dock
For under $40 I was able to convert the entirety of my household AA and AAA items to rechargeable batteries and still have a few charged and ready to replace any dead ones.
That's months of not needing to buy batteries for a little over $2 invested per battery.
If you're interested in transitioning to rechargeable batteries without breaking the bank, I'd highly suggest the EBL 8 bay charger with 4 AAs and 4 AAAs along with the 8 back of AAs.