New steerer tube-mounted charger/battery cell - http://www.necoparts.com/en/product/NECO-Series/NECO+3.html
Think they'll be offering a dynamo fed/powered version also
@Alb started
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New steerer tube-mounted charger/battery cell - http://www.necoparts.com/en/product/NECO-Series/NECO+3.html
Think they'll be offering a dynamo fed/powered version also