1) Ensure that charger rate is properly set and polarity is correct.2) Attach charging leads to battery.3) Place battery in LipoSack towards the bottom.4) Place LipoSack on non-flammable surface.5) Route charge leads through vent at the top seam of the LipoSack.6) Close top flap of LipoSack and press hook and loop closure fully closed.7) Charge battery using proper charging practices8) OEM accepted9) Factory price & High quality10 )Good consistency, low self discharge11)One year FACTORY WARRANTY (except artificial damaged).12)Delivery time:5 day