Losing gps

[chaunc]

Anybody have a problem with losing your gps signal when you start your motor with the locator on? Thinking it has something to do with the battery being older. Any ideas?

[crappiemax]

I had an issue where my back light would dim and stay dimmed when I started the OB. I had a 3 year old group 24 battery for the OB so I switched it to a new group 29 a couple of weeks ago. I've only been out a few times and with this heat I've only fished a few half days. So far it been good and I haven't had any problems since the change. I guess running the 2 HDS units plus the LSS-1 and livewell all day must have been too much. At least I hope that what caused the problem.

Good luck with the fix.

[jimp]

I have a HDS 8 hooked up to a cranking batt made in 5/06, and the HDS works fine. I haven't noticed it loosing gps lock when I cranked the big motor (60 hp). I have left the HDS on for 4hrs or more when starting the 60hp, but didn't get an alarm about losing gps lock. I also had the HB 788 HD going most of the time as well (wired straight to the cranking batt) so you may have a weak battery. Newer electronics are very picky about their power supply

[Cane Pole]

My HDS8 and 997 both cut off when cranking. I was told by an expert to replace the cranking battery. I did. Didn't fix the problem. I went back and got a bigger crank battery. Didn't fix the problem. I just shut the dang things off now before starting, PIA.

[XPress12]

Check your ground also. I fought with my 898 and 570 getting low voltage when cranking. I ended up running a heavier gauge wire for both the power and ground directly to the cranking battery. I cut all but about 24" of the Humminbird power cable off and soldered and heat shrinked this to my heavier wires coming from the battery. No issues since. Originally I had just ran a new power wire and grounded into the bus under the dash. Only when I ran the new ground wire as well did the issue go away. You could run a piece back to the battery temporarily to see if it helps before you go through the trouble of fishing the wires.

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[XPress12]

Forgot to add that I ran seperate wires for both units with inline fuses at the battery. I soldered and heat shrinked all the connectors and splices and then coated with liquid electrical tape... May be overkill but I hate fighting electrical problems on the water...

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[crappiemax]

Forgot to add that I ran seperate wires for both units with inline fuses at the battery. I soldered and heat shrinked all the connectors and splices and then coated with liquid electrical tape... May be overkill but I hate fighting electrical problems on the water...

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I plan on doing this during the winter when I'm bored out of my mind.

[justinp61]

Load test your battery, if its good then check your wiring. Years ago I smoked a almost new Eagle 7200 because of a bad battery, I hit the key to start the outboard and the depth finder immediately went off and never came on again. I think todays units are more tolerant of lower voltage.

Personally I like to use a fuse panel to run my electronics off of, you just to have make sure the supply wires to the battery are large enough to carry the load. I currently have three HDS units and a LSS-1 on my boat and once I start fishing never turn them off until I'm through for the day. The battery on my boat is a group 31 Everstart and my units don't even flicker when I start the ob, a 90 hp Yamaha.

[chaunc]

Thanks fellas. Think i'm gonna replace that walmart battery i've had for a few years now.

[Corker]

heavier gauge wire...cut all but about 24" of the Humminbird power cable off...No issues since.

make sure the supply wires to the battery are large enough to carry the load.

Bigger wire is always better--especially when you have 12v or 24v circuits. Today's electronics suck up more juice than the old stuff did.