I have a Humminbird 899SI and the unit shuts down when I start the big motor. This is getting very frustrating that I have to turn it off every time I start the engine. I have the same unit on the bow and starting the engine does not effect this unit. I am wired to the panel under the dash right now. Should I extend the power an connect directly to the battery?
I need to get this taken care of!
I had that issue once years ago and if I remember right it was from my battery on its final leg. Put a new battery in and the problem was solved I believe.
My initial thought is a combination of a weak battery and wiring it direct to the battery. Maybe start with direct wiring as it’s least expensive option.
Also, I assume this is the starting battery. Do you use an onboard charger for it?
I had that problem with a Lowrance on my console that was powered off the starting battery. My bow graph (wired to trolling batteries) was fine. Put a new battery and now it’s fine.
This happened on a buddies boat a couple weeks back, he ended up having to buy a new starting battery…
Your battery is likely on its last legs. When you turn the key, the voltage is dropping so low that the Humminbird is going into low power shutdown mode.
Take your battery in and get it load tested. My bet is that your battery’s voltage is fine to start with, but the load test will show it can’t deliver any amps anymore.
I guess it’s better to find out about this now rather than being on the water and turning the key to get a solid CLICK and nothing.
Grouse
You also want to make sure the wires attached to the battery are sequenced properly.
The motor cables need to be the first (bottom) wires attached.
My fix for this issue was the wiring sequence at the terminal. Put tge,h bird ontop and that was that.
You also want to make sure the wires attached to the battery are sequenced properly.
The motor cables need to be the first (bottom) wires attached.
Take a brush to em while your at it to make sure they clean!
I have this same issue, my battery is brand new. From reading other forums… I’m going to run a wire directly to the battery
I have two HDS units, when this happened to me I changed out the battery and problem was solved. Mine are wired to the batteries.
Low power shut down without a doubt.
Could be caused by bad batteries
Could be corroded terminals and connections
Terminal sequence is not an issue unless any of the above and then terminal sequence is only a band-aid.
If your battery checks good ( do a load test) and all connections are clean, then you do not have enough battery for your motor and accessories.
Not a biggie
If everything works fine after checking the above and you have no other electrical interference issues, you have no reason to run wiring directly to battery IMO
Low power shut down without a doubt.
Could be caused by bad batteries
Could be corroded terminals and connections
Terminal sequence is not an issue unless any of the above and then terminal sequence is only a band-aid.If your battery checks good ( do a load test) and all connections are clean, then you do not have enough battery for your motor and accessories.
Not a biggie
Agree with above and will add;
You could have a low voltage issue if the wire gauge running to your fuse panel is too small for the load.
I had the issue when I installed a new bird. It would shut off from time to time. New starting battery and wired into the fuse box. Called humminbird and they said to wire directly to the battery. Solved my issue. If it has worked fine in the past, like most have stated check the battery and connections.
Could be possible the spark plugs, slot of new plugs don’t come with ground electrode, which can give electrical feed back
Thanks for all the replys. I will start with direct wiring to the starting battery and sequencing them properly. Hopefully I can get at this tonight, if this doesn’t solve the problem I will be shopping for a new starting battery.
I have a Alumacraft Tournament Pro with a 175 Suzuki. What is a good starting battery for my boat if this is the issue?
Biggest H.D. battery that will fit in your location.
When you finally figure out its the battery get the next size up and you will be fine.
Had the same problem with a group 27 went to a group 31 and it’s fixed
Personally I’d run two batteries but I tend to fish too much with Plenty of electronics running… And I’m only cranking over a 70hp
Agree with above and will add;
You could have a low voltage issue if the wire gauge running to your fuse panel is too small for the load.
This.
With the motor off, power up everything that would normally be running while you are fishing. Then check the voltage at the battery versus the voltage on the depth finder. If there is a variance then there is too much load on the fuse block for the amount of wire between the battery and the fuse block.
I had a similar issue. 12.5V at the battery, 12.1V at the fuse block with all my stuff running, except the motor. Corrected it by adding a second fuse block with its own wiring from the battery. Then split all the electrical accessories under the dash between the two fuse blocks.
I had a 999 SI do this. The problem was the factory fuse panel in the boat. We wound up running the power direct from the battery with an inline fuse. 3 Watt is what i think HB recommended. No problem since. When running through the panel the voltage would drop just enough when the motor would crank to either kill the unit or lock it up.
Low power shut down without a doubt.
Could be caused by bad batteries
Could be corroded terminals and connections
Terminal sequence is not an issue unless any of the above and then terminal sequence is only a band-aid.If your battery checks good ( do a load test) and all connections are clean, then you do not have enough battery for your motor and accessories.
Not a biggie
I will not totally agree with the wire sequencing it can be critical. When my nephew purchased his new Hbird 1199 worked 100% went to crank the big motor and it killed his 1199. Sent it in to Hbird repaired and sent it back hooked it back up worked perfect went to start the motor killed it again. Sent back in to Hbird received it back this time he asked me to help him check over the set up. He had put his direct wires from the Hbird under the main wires from his motor moved them above the main wires never had an issue since.
starting battery is going bad. i have to charge the starting battery before every trip because its starting to go as well.
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