This 2 adapter kit will allow you to use your 2S JST-XH batteries with a PH3 (UMX) equipped vehicle -or- charge your PH3 batteries on a JST-XH equipped charger. The no-wire configuration is the most compact, lightest and solder-free way to convert your PH3 and 2S JST-XH plugs. BackBayRC has been a pioneer in no-wire adapters and offers an unparalleled selection along with a 15-year comittment to using only the highest quality adapters.