Here's my solution to charging multiple batteries at once:
I am using 5 DC-DC 250W boost converters to which I have attached heat sinks. Each one is set to 95W - which means batteries are charged at just over 1C. It is faster than the 3DR wall plug and, most important, I can hook it up to the car battery and use it on the move.
The battery connectors are a mix of 3d printing and cutting copper blades. Quite a lot of work went into making them.
I might add some metal mesh on the sides to protect the electronics, but for now I am just careful with where I place it.
I hope someone will find this useful.
Cheers!
I am using 5 DC-DC 250W boost converters to which I have attached heat sinks. Each one is set to 95W - which means batteries are charged at just over 1C. It is faster than the 3DR wall plug and, most important, I can hook it up to the car battery and use it on the move.
The battery connectors are a mix of 3d printing and cutting copper blades. Quite a lot of work went into making them.
I might add some metal mesh on the sides to protect the electronics, but for now I am just careful with where I place it.
I hope someone will find this useful.
Cheers!