What do you need powerbank for?
"Smart"phone running Racedrone for tracking but doesn't last more than 6hrs really so power boost needed.
Ah! Is tracking provided/compulsory?
I have one from KP, made by Outdoor Tech I think (they sell in shop). 90g with rubberised cover, 67g without, unsure what the power is but good for a couple of iPhone recharges.
@rhb started
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What do you need powerbank for?