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Aluminum is no issue, my steering console is aluminum and gets it ground throuh metal to metal contact. Grounding/bonding is no issue either, your just not alowed to use hull as a return path.

BLUF: So for me, can't answer the original question until all lithium batteries achieve better recycling process. Lifepo4 batteries have many good qualities as discussed in this thread. Lead acid batteries are almost 100% recycleable, not sure about lithium. I know it is quite a process to...

Not enough info for risk assesment, but not just a fuse, but equipment failure when you need it. Stranded, arc near flamabale vapors, lights at dust, just depends on what is connected to the branch circuit.

Pretty sure these units can be connected to each other over wifi and share data. May save some additional wiring. The LED lights, some states reserve blue for law enforcement and they can not interfere/be confused with navigation lights, check your local requirements.

My Garmin Striker 4 doesn't come/use maps. Don't need them for an inexpensive 2D sonar. But my Garmin Echo Map has this statement on maps.

I would do some additional research, the cone size is not the only item to be concerned with. Research and see if it is compatible with side scan and down image. Pretty sure he transducer is only 2D (83khz & 200khz), then any modern FF will be an extremely overpriced addition. Attached garmin...

There are some pretty nice smart battery boxes. Just would have to mae sure they meet your needs.

Same answer, if the wire between battery/power source and fuse panel is longer than 7" a fuse or circuit breaker is required. Wiring, contacts, terminals need to be rated for the max load. If the power wire is in a conduit or sheethed, and > 72" it requires the same as above. Can't speak for...

Master breaker ? Current potection should be used on wiring over 7" long. Cranking circuits are excempt. Wires that are sheethed or in conduits can be 72" long before protection is reqired. Protection should be as close to battery as possible. There are additional exceptions, but they...

Yes, that type of switch. Just want to mention, the switch may not be required, see the attachment. But if you do install it, it should be as close to battery as possible.

Just wanted to add ABYC E-11 excerpt for connectors. Assuming, by following the exact instructions in the manual, it would meet this requirement.

The battery switch shall be installed close to battery. Your battery storage as pictured fails numerous safety isses. Attache'd is some exceptional from ABYC E-11 and E-10.

The circuit breaker should be 5-10 amps greater than max current draw of the motor. Wiring, terminals, contacts, ect, should be rated higher than the circuit breaker. The CB should be the weakest link. My opinion: to prevent multiple CB reset when in weeds, Engineers determined that a larger...

Just wanted to update my previous answer, Motorguide pinpoint (gps) has a built in compass, so it gets its heading from the compass. So, if you see a boat going in circles, they may be doing a compass calibration.

Not a lithium starter battery.

A number of lifepo4 batteries require a DC to DC charger for alternator charging to prevent overheating and damaging the alternator. Suzuki, states in the user manual to use a lead acid starter battery.

Not familar with your setup, but if you can use an ohm meter, find out which wire is ground to the tilt motor. The other 2 wires should be up and down.

Just in case you need the setup manual

Here is an excerpt from ABYC E11.

For Jog left to move left (in respect to the boat), the system needs to know which way your pointing. It would be like, pressing left with seat facing aft, the boat would move left, but from your prospective it moved right. Same with a boat that moved 180°, if it didn't know its direction...