Whats wrong with using the charger you have already Graham?
Its 20 for two battery's. A lot of the spares come in sets of multiples like they do in the bigger helis.
Thanks Tony I could make one of themYou would charge it as you would the eflight 2s batteries. Look up eflight charging adapter to see what I'm talking about. Here is a picture. The white wire is the only one that doesn't go to the charger, but is for the balance port.
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