Tankerpilot75
Well Known Member
I went to fly to a YE event and after starting I got a low EFIS voltage warning and negative amp reading on my GRT EIS/EFIS. This is the second time it's happened to me this month. The first time it happened (last time I flew) I cleared the problem by shuting down the engine and restarting. I tried this again but there wasn't enough battery left for a restart. I pushed it back into the hanger and put the battery minder on it.
Thirty minutes later I checked the battery voltage and it was 13.58. A friend suggested with this voltage reading on the battery so quickly after hooking up the battery minder that it probably wasn't the battery. He suggested I pulled the alternator and have it tested. I have the alternator off now (quite the job) and will have it tested but if it checks good what should I check next?
Thirty minutes later I checked the battery voltage and it was 13.58. A friend suggested with this voltage reading on the battery so quickly after hooking up the battery minder that it probably wasn't the battery. He suggested I pulled the alternator and have it tested. I have the alternator off now (quite the job) and will have it tested but if it checks good what should I check next?