Please note that: <br><br> -This plug is diameter about 8mm(0.31inch),<br> <br> - The charger is not fit for Razor ,<br><br> -The charger Optimum life is 1 year<br><br> -Do not use over 5 hour per charge time<br><br> -Please charge in a ventilated environment <br> <br> -Please don't cover the charger <br><br> -Only use for lithium battery , <br><br> Please check your model and better before purchasing!!!<br><br><br> We do our best to make every product<br><br> 1 Anti interference, good safety performance, high reliability<br><br> 2 High efficiency, small heat, long service life<br><br> 3 With short circuit, overload, over voltage, over temperature protection<br><br><br> If it does not charge your device, there may be one of the following reasons:<br><br> 1.The charger is not suitable for your device, please tell us the brand and model of your device.<br><br> 2. Due to the limited life of lithium batteries, Your battery is broken.If your battery has been used for more than 12 months or unused for 2-3 months, your battery might be damaged.<br><br><br> Product Description<br> Input: AC 100-240V 50/60Hz 1.5A<br><br> Output:42V 2A (Please check carefully the input voltage of your product) <b><br> The beginning of the charging temperature will be a little high, the temperature will slowly come down later, because at the beginning, which is no electricity, with the more power charge more and more, the temperature will become lower and lower.<br><br><br>