So, we recently undertook a two week pop-up camping trip through some of the Canadian Rockies. We had 2 nights of powered camping, followed by 2 nights of battery camping, then a 3 hour drive, 3 more nights of battery camping, and finally, 3 nights of powered camping. When I bought the trailer, it had a group 24 battery and battery box, however the battery hadn't been maintained, and was completely dead. Before undertaking the trip, I took some time to prepare the camper, and I also purchased some equipment: A brand new Group 31 Lead Acid Battery (210 Reserve Capacity) A Group 31 Battery Box A NoCo Genius G3500 Smart Battery Charger A Voltage Monitor with 2 USB chargers LED Bulbs for exterior and interior house lights. A (borrowed) 25W Coleman Solar Panel with Charge Controller. Before we left, I installed the battery box and battery. The Group31 battery box was too large to fit in the stock location without modification, so I installed a piece of plywood (painted black) to lift the battery box over the metal lip on the front platform, allowing the battery to fit. I then hooked the Noco Genius up to the battery and left it plugged in for the weeks leading up to our trip. The NOCO Genius battery charger is a smart battery charger, meaning you can leave it plugged into a battery indefinitely, and it won't overcharge. It is voltage sensing, meaning that when it senses the battery is full, it switches off, and when the battery self drains after some time, the charger will kick back on with a trickle charger. While the battery was on the trailer, with the charger connected, I had the battery fuse removed, to eliminate the parasitic draw that comes from various components in the trailer, such as the carbon monoxide alarm and propane detector. In the meantime, I replaced all the lightbulbs in and out of the camper with LED's purchased from Amazon. I also installed the Voltmeter/USB charger. I taped a little Voltage chart next to the voltmeter. You can estimate the energy level of the battery by reading the voltage level. It's an approximation, but it works well enough. Note: You can't have any load on the battery when trying to read its level, or you will get an artificially low voltage reading. The same goes for when charging with solar. If you have a solar panel hooked up, you will read the voltage coming off the panel, rather than the true voltage of the battery. This little voltage meter/USB charger allowed us to keep all our electronic devices (phones/tablets) fully charged when we at camp, without needing the trailer to be plugged in. Now, time for the actual trip: While driving to our first campsite, I didn't want the vehicle to overcharge the battery (battery was already full as the smart charger had been hooked up at home prior to leaving), so I left the fuse disconnected. When we were camping at our first site (powered), I also didn't want the trailer's converter overcharging the battery, so I also left the fuse disconnected. I did, however, plug in the Genius and let it trickle charge the battery as required. When we moved to our new site (unpowered), at that time I plugged the fuse back in so that the trailer was running off battery power. The battery started off at 12.7V (100%). That night we used our lights normally, ran the water pump a bunch, and we even ran the furnace. We also charged up our phones and tablets as needed. Something was always plugged into the little USB outlet charging, sometimes two at a time. Basically we weren't shy about electricity usage. When we woke up in the morning, the battery voltage read 12.4, or about 80%. I hooked up the little 25W Coleman Solar Panel, and let it do its thing throughout the day. Our site was quite shady, and we were gone most of the day, so it's not like I was turning it to constantly follow the sun. And yet, that little solar panel managed to bring the battery back up to 12.6V, or damn near 100%. One more night in the trailer with lights, pump, furnace, and phones charging, and come morning we were at 12.3V, or 70%. We broke camp, and hitched the trailer to the van, preparing for a 3 hour drive to our next site. We left the battery fuse connected, so that the TV could charge the battery as we drove. When we got to our next site (again, unpowered), and when I checked the battery's voltage (after giving it a couple of hours for the voltage levels to stabilize after being charged), the voltage was back up to 12.7V, or 100%. Wonderful. The next 3 days were pretty much as such: More lights, water pump, device charging, and furnace (it would get down to 4C at night) all night long. In the morning the battery would be at around 70%-80%, depending on furnace usage. Plugging in the solar panel the next morning and letting it do its thing would bring the battery back up to 12.6V by the time we got back to our campsite each evening. When we packed up and drove 10 hours to our next campsite, I left the fuse plugged in so that once again, the vehicle could charge the battery to 100%. We didn't need the battery anymore, but it is better for the battery's health to charge it fully and as soon as possible after using it. When we got to our next campsite (powered), I once again removed the fuse, so as to prevent overcharging by the trailer's converter. I plugged in the Genius smart charger one more time, just to make sure the battery was completely topped up and healthy. The battery remained disconnected from the trailer for the rest of the trip. Now that we are at home, I have the battery once again on the Genius battery charger, and will likely remove it and put it in the basement, still hooked up the charger for the entire winter. CONCLUSION If you are looking to battery camp, buy the biggest battery that you can afford. We bought a Group 31 Lead Acid battery. It cost us $120CAD. You also need to buy a good smart charger that you can leave plugged in. The NOCO Genius G3500 that I bought was $160CAD. You also need to take care that the trailer's converter doesn't overcharge the battery (that will boil off electrolyte, damaging the battery). You also don't want to deplete the battery past 50% before charging it (doing so could damage a lead acid battery). In my experience, with the equipment we had, and the battery we were using, we would go down to at worst, 70% battery reserve, and then charge it up to almost 100% the next day either by charging with the tow vehicle, or with the 25W solar panel. I feel that had we had a slightly larger panel (40W?), and some luck with the sun, we could have camped almost indefinitely at one site, without any charging from the tow vehicle. If you have a big enough battery (enough reserve capacity), and a good solar panel, I find you don't need to be worried about electricity usage. My battery never once even approached 50%, which is what I would call the 'danger zone' with regards to overall battery health and longevity. If you buy a good battery charger, and are diligent about when your battery is connected and when it is not (try to prevent over-charging), then you should get many, many trouble-free years out of your battery, making your investment last longer. I'm certainly not afraid to book unserviced sites anymore. My experience on this past trip is telling me that we can camp almost indefinitely at an unserviced site, and still use power normally.