Should be fine to just let it sit, but if you want to do something either disconnect the battery or use a battery tender. Starting it up cold for a few minutes isn't good for the engine and won't do much for your battery.Recovering from surgery and will be off the bike for about 3 months. Is a battery tender necessary? Or is starting it up once a week-ish for a few minutes good enough? Bike is a 2018.
Are you sure your solar system is working ?even the car that we use on an almost daily state has a solar batt charger that plugs into the cig lighter. it sits in a carport and gets enough sunlight there to do the job.
I have seen many plugged into dead sockets and the owner thinks they are working because the light is flashing.I would not swear that all U S car cig lighter sockets are hot with the switch off but on our car in question it is hot at all times. not hard to check with a volt meter. this can be good or bad. yeah, if you leave a load plugged in you can drain the batt. I was a little surprised to find the cig outlet hot at all times.
now that I think about it they sell a lot of those solar chargers for cars here. I wonder if they work for all cars here.
Running the bike just to maintain battery charge may lead to problems in other areas.Recovering from surgery and will be off the bike for about 3 months. Is a battery tender necessary? Or is starting it up once a week-ish for a few minutes good enough? Bike is a 2018.
Most of the cars I have owned power the cigarette lighter when the car is off.Are you sure your solar system is working ?
If your cars are like Aussie cars and it is plugged into your cig lighter socket, when you turn your ignition to the off position the panel can't be powering the battery.
I'm not a fan of AC powered tenders, without continuously checking the performance of the tender it can kill a battery quicker than not using the battery.
Having said that I love small solar systems like RLB is using, they only supply milliamps and batteries love it.
All my farm vehicles have solar systems fitted, they all have used batteries fitted, they were thrown away for being stuffed, over time the milliamps supplied by the solar systems soften the plates up and get the batteries back to a useable condition, not like new but useable.
We must do things differently down here.Most of the cars I have owned power the cigarette lighter when the car is off.
I know you're just saying, but I figure it might be worth informing you that, if you think your batteries died the first year due to not having a tender, yet you stored the batteries in the same 100 degree heat in a baja garage, the tender isn't what saved your batteries the next year. Heat doesn't drain a battery, it damages it by allowing the battery fluid to evaporate. A tender is not what saved your batteries the 2nd time around from heat. I also doubt that 100 degree heat was causing any issues to your previous batteries.Testimonial to Battery Tender JR:
My Diesel offshore boat has two Optima batteries. At $275.00 each. The boat sits in a 100 degree plus Baja garage for 6 months each year.
First year the batteries did not survive that.
Bought two Battery Tender Jrs. and the replacements are still strong 6 years later.
This is nothing more than vehicle manufacturer related. Chevy's stay on. Volkswagons do not.We must do things differently down here.
I purchased a new car for the bride a few days ago and I have not tested it but with every other car I have ever owned the power socket shut off with the ignition.
I currently have 12 other cars from 8 different manufacturers and they all loose power when the ignition is shut off.
I find it interesting and like learning new stuff from other parts of the world, could it be part of our ADR's ?