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Alex · October 9th, 2013, 07:29 AM

Yes - if you leave the GPS on it will drain. But the GPS typically runs on AA batteries, and would likely take weeks to drain the motorcycle battery even if it were left on. If you're running high-drain devices like heated grips, a relay is needed so the power can come straight from the battery, while the trigger wire can connect to the headlight wire or other switched power. If it's just the GPS, you wouldn't even really need a relay and could wire it directly to that switched power with no issues.

October 9th, 2013, 07:29 AM	#25
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	Yes - if you leave the GPS on it will drain. But the GPS typically runs on AA batteries, and would likely take weeks to drain the motorcycle battery even if it were left on. If you're running high-drain devices like heated grips, a relay is needed so the power can come straight from the battery, while the trigger wire can connect to the headlight wire or other switched power. If it's just the GPS, you wouldn't even really need a relay and could wire it directly to that switched power with no issues. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)