This is an amazingly good H107C-005 5pcs 3.7V500MAH Li-Po Battery + Charging Cable + USB Cable we would like to recommend today. With long time storage and large capacity￡? it is great to charge for the RC helicopter. It can run on the 3.7V supplied in a standard USB cable. That makes this great for charging from any PC￡? laptop and anywhere you can plug in one of the ubiquitous USB charging wall warts. This battery and cable set is suitable H107 / H107L / H107C / H107D / U816 / U816A / V202 / V939 / V252. Come to order it now￡? it works functionally for your RC helicopter. It is well worth the money.                                    Features            Made of good quality material￡? it is high-quality and durableWith slim and portable design￡? it is easy to carryQuick and safe to chargeConvenient to useWith this battery and USB cable￡? your RC helicopter can fly longer When it is fully charged￡? the USB cable is no longer black                                                            Specifications            Model    H107C-005    <br>Suitable for    H107/H107L/H107C/H107D/U816/U816A/V202/V939/V252    <br>Color    Blue    <br>Battery Capacity    3.7V 500mAh    <br>Battery Dimensions    (1.77 x 0.79 x 0.31)" / (4.5 x 2 x 0.8)cm (L x W x H)    <br>Weight    2.86oz / 81g    <br>                                                            Package Includes            5x Li-Po Battery1 x Charging Cable1 x USB Cable                                                            Extra Info            The related notes about lithium battery&acute;s usage<br>Please use the charger from original factory to ensure your safety using.<br>Do not charge the dilatant/outworn batteries<br>Do not overcharge the batterry.Please pull out the charge once the battery is fully charged.<br>Do not charge it next to the inflammables or on the surface of electro-conductive objects.You should observe the battery at all times.<br>Do not charge the batteries which are still not cool on the surface￡?Otherwise￡?it would cause expansion and even fire accident.<br>The charging temperature should be between 0?? and 40??<br>Do not over-expose or over-impact the batteries.