[jasomill]

I've never had a problem with the basic 4-cell chargers that Panasonic includes with their Eneloop starter kits, other than the mildly annoying fact that they cover more than a single plug on a power strip.

Build quality seems fine, and I've been using them for decades without a single failure, so I've never seen any reason to even investigate alternatives.

[jasona123]

Panasonic does have one that charges over USB (micro-USB input though) so you can use an old 5V Apple brick and only take up one spot. It also supports USB out via a full-size USB-A port. Picked one up since I liked the idea of being able to use AAs in a pinch for recharging.

[nosrepa]

6 inch extension cords are a blessing I didn't know I needed until I had them. Now every charger takes up exactly one outlet.