Some power panels have a glow plug-like male plug for which you can attach your Ny-starter and from which your charged engine starter battery will charge your glow plug igniter! My power support panel by Tower has such an attachment. This should get you started at the field, then go home and charge it up! Lately I try to mentally remember how often I've been flying and just recharge my ny-starter after about 6 flying sessions! In addition if my memory fails, which is not unusual , I have tow extra igniters in my box just for insurance!
Phil Spillman