Jump Start Battery

You have a pickup. Install 2 extra deep cycles in the back.

Those jump boxes are only 5% or 10% of the capacity of your existing battery. Good for jump starting the generator but not so much to keep the furnace going. If you have a group 24... go ahead and get two group 27. I get mine at Costco.

Just get a second battery and then to ensure the longest life possible and always topped off batterys (coming out of storage) get a small solar panel with good controller (30 to 50 watts should be more than plenty) as a maintainer

We installed a total of 4 batteries. Two for lights, pump,refrig and 12v outlets. The other two are for the heater but can be brought in to supplement the other two batteries if needed. For a while we had a 1000w honda generator very quiet that we would run at night when the heater was needed.

My PLAN B for off the power grid camping is to have a 2KW Honda Generator and B&D VEC1093DBD 40AMP smart mode portable charger.

I can start up my generator and plug in my portable B&D 40AMP battery charger and usually can jump start any car battery in 5 min of normal charge. The VEC1093DBD also has a 100AMP jump start output but I have never had to use that. Usually when someone runs down their battery I can bring it back enough to get their truck started in around 5 minutes of normal charge mode.

The second reason I have the portable smart mode charger is I can recharge mt trailer battery bank back up to its 90% charge state in around three hours of running the generator with the 40AMp charger plugged in.

I can also plug the trailer shore power cable into the 2KW generator 120VAC receptacle using a RV30A-15A adapter ans use the on-board smart mode converter/charger and recharge the battery bank back up to the 90% charge in a three hour generator run...

Pretty good PLAN B for me...

Roy Ken

Sure, either that or bring a spare battery.

Just get a second battery. Those jump start batteries are designed for a couple of starts and not for a continuous draw.

BK