Featuring ToolKitRC Chargers
I love these chargers, and I've owner several of them over the years. I particularly like them because they are pocket sized, but extremely powerful.
The M6D is in my bag every day, dual charging up to 10amps per channel. I can charge a ton of packs fast.
If you're flying 4S then check out the M4Q 4 way charger with built in AC power supply.