I work away from home for 4weeks at a time.
I want to know whats the best way to store the batteries i have?

i have;

3s 5000mha 11.1v lipo x2 (traxxas)
2s 4500mha 7.4v lipo
7s 3000mha 8.4v Nimh x2 (traxxas)

should i leave discharged or fully charge them before i go ?