Watts on the Roof is an independent guide to home and off-grid solar power and battery backup. We test and explain panels, batteries, inverters, and complete systems for home backup, off-grid cabins, vans, and homesteads, plus a free sizing calculator, so you can buy with confidence.https://wattsontheroof.com/https://wattsontheroof.com/guides/best-rv-battery-2026/https://wattsontheroof.com/guides/best-rv-battery-2026/The best 12V LiFePO4 RV batteries for 2026, from budget 100Ah picks to a 200Ah option and a self-heating model, with capacity, BMS, and price per kWh.Sat, 13 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/guides/best-rv-inverter-2026/https://wattsontheroof.com/guides/best-rv-inverter-2026/The best RV inverters for 2026, from budget 1200W pure sine units to 3000W and inverter/chargers, with continuous watts, surge ratings, and who each suits.Sat, 13 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/reviews/anker-solix-c1000-review/https://wattsontheroof.com/reviews/anker-solix-c1000-review/A 1,056 Wh power station with 1,800W output and 58-minute charging. A synthesis of independent testing on where it fits and where it falls short.Sat, 13 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/reviews/bluetti-ac200l-review/https://wattsontheroof.com/reviews/bluetti-ac200l-review/A 2,048 Wh expandable power station with 2,400W output and fast charging. Where the Bluetti AC200L fits for home backup, RV, and off-grid, and where it does not.Sat, 13 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/reviews/ecoflow-delta-2-review/https://wattsontheroof.com/reviews/ecoflow-delta-2-review/A 1,024Wh power station with 1,800W output, fast recharge, and a 3,000-cycle battery. Where the DELTA 2 fits and where it falls short.Sat, 13 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/reviews/eg4-18kpv-review/https://wattsontheroof.com/reviews/eg4-18kpv-review/A hardwired 12kW split-phase hybrid inverter for serious off-grid and whole-home solar. Where the EG4 18kPV fits, and the install reality.Sat, 13 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/reviews/jackery-explorer-2000-v2-review/https://wattsontheroof.com/reviews/jackery-explorer-2000-v2-review/A synthesis review of the Jackery Explorer 2000 v2: 2,042Wh, 2,200W, about 39 pounds, and OutdoorGearLab's top-ranked power station.Sat, 13 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/reviews/litime-12v-100ah-lifepo4-review/https://wattsontheroof.com/reviews/litime-12v-100ah-lifepo4-review/One of the best-selling 12V LiFePO4 batteries on Amazon. A synthesis of pro and owner reviews on what its 1,280 Wh, 100A BMS, and price really buy you.Sat, 13 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/reviews/redodo-12v-100ah-lifepo4-review/https://wattsontheroof.com/reviews/redodo-12v-100ah-lifepo4-review/A synthesis of pro and owner reviews on the Redodo 12V 100Ah, among the cheapest name-brand 12V LiFePO4 going. What its 1,280 Wh, 100A BMS, and price really buy you.Sat, 13 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/reviews/renogy-200w-12v-solar-rv-kit-review/https://wattsontheroof.com/reviews/renogy-200w-12v-solar-rv-kit-review/A synthesis of pro and owner reports on Renogy's 200W RV solar kit: two 100W mono panels, a 30A PWM controller, and what it really charges off-grid.Sat, 13 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/reviews/renogy-dcc50s-dc-dc-charger-review/https://wattsontheroof.com/reviews/renogy-dcc50s-dc-dc-charger-review/A synthesis review of the Renogy DCC50S 12V 50A DC-DC charger with built-in MPPT, the device that tops up a van or RV house battery from the alternator while you drive.Sat, 13 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/guides/best-solar-inverters-2026/https://wattsontheroof.com/guides/best-solar-inverters-2026/The best solar inverters for 2026, from budget off-grid units to whole-home hybrids, with continuous output, MPPT count, warranty, and who each suits.Wed, 10 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/guides/mppt-vs-pwm-charge-controllers-2026/https://wattsontheroof.com/guides/mppt-vs-pwm-charge-controllers-2026/MPPT vs PWM solar charge controllers in 2026: the real difference, how much more energy MPPT harvests, when each makes sense, and the best controllers to buy.Wed, 10 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/guides/best-lifepo4-batteries-solar-2026/https://wattsontheroof.com/guides/best-lifepo4-batteries-solar-2026/The best LiFePO4 batteries for off-grid solar in 2026, from 48V server-rack banks to 12V RV batteries, with capacity, price per kWh, and who each suits.Tue, 09 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/guides/best-off-grid-solar-kits-2026/https://wattsontheroof.com/guides/best-off-grid-solar-kits-2026/The best off-grid solar kits for 2026 for homes, cabins, and homesteads, from plug-and-play all-in-one systems to budget DIY component kits, with specs and who each suits.Tue, 09 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/guides/best-rv-solar-panels-2026/https://wattsontheroof.com/guides/best-rv-solar-panels-2026/The best RV solar panels and kits for 2026, from full roof-mount kits to single panels, portable solar, and LiFePO4 batteries, with specs and who each is for.Tue, 09 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/guides/how-many-solar-panels-to-run-a-house-2026/https://wattsontheroof.com/guides/how-many-solar-panels-to-run-a-house-2026/How many solar panels it takes to run a refrigerator, your essentials, or a whole house off-grid in 2026, with worked examples and a free sizing calculator.Tue, 09 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/guides/best-home-battery-backup-2026/https://wattsontheroof.com/guides/best-home-battery-backup-2026/The best home battery backup systems to ride out a power outage, from plug-and-play power stations to whole-home all-in-one inverters.Mon, 08 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/guides/best-portable-power-station-2026/https://wattsontheroof.com/guides/best-portable-power-station-2026/The best portable power stations for home backup, RVs, and camping in 2026, from compact units to 4 kWh machines, with capacity, output, and who each is for.Mon, 08 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/guides/best-solar-generator-home-backup-2026/https://wattsontheroof.com/guides/best-solar-generator-home-backup-2026/The best solar generators for home backup in 2026, station-plus-panel kits from EcoFlow, Jackery, Bluetti, and Anker, with capacity, output, and who each suits.Mon, 08 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/guides/ecoflow-vs-bluetti-vs-jackery-2026/https://wattsontheroof.com/guides/ecoflow-vs-bluetti-vs-jackery-2026/EcoFlow vs Bluetti vs Jackery in 2026: how the big three power station brands compare on app, capacity, weight, and value, and which to buy for your needs.Mon, 08 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/guides/how-to-size-off-grid-solar-system/https://wattsontheroof.com/guides/how-to-size-off-grid-solar-system/How many solar panels and batteries do you need? Size your battery bank, solar array, charge controller, and inverter, plus a free off-grid solar calculator.Mon, 08 Jun 2026 00:00:00 GMThttps://wattsontheroof.com/reviews/ecoflow-delta-pro-3-review/https://wattsontheroof.com/reviews/ecoflow-delta-pro-3-review/A wheeled 4 kWh power station that delivers real home backup with no wiring. Here is where it fits and where it does not.Mon, 08 Jun 2026 00:00:00 GMT