My auranthetic came with a 24v Cliplight charger that works very well. This link is all they have in 48v. Would be fast but probably $$$
Cliplight Manufacturing - OEM-Battery Charger
There's a cool hack you can do if you find an old apc computer backup pack. I found one for free at our recycling center here. The small ones come with a 24 volt battery pack which costs alot to replace so I guess folks just throw them out. Some big ones come with a 48v pack.
the batteries just slide out the front after you remove the faceplate and are attached with an Anderson connector. Just hook up your deep cycle battery pack and you have a charger and a high quality sine wave power inverter for outages. Mine is rated for 980 watts! Monitor it all on your computer.
Let me know and I'll post pics of my 5 minute hack.
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