Ok, So while out testing the Alpha i realised that other than bases or ports there is no way to recharge your suit whilst on foot other than a battery you may or may not have in your kit. Both your personal ship and SRV are basicly mobile power generators. You could supply a recharge port on a landing strut for a ship and on the side of the SRV to save having to 'Board' or use up powewr cell's that you may or may not be carrying.