Best Starter Kit · 1 of 6
ECI Power 100W 12V Solar Power Kit with 12V 20Ah LiFePO4 Battery

- 100W panel, 20Ah LiFePO4
- 10A PWM controller
- 2,000 cycles at 80% depth
Our take
Pick it for a small camper, a trailer fan and lights, or phone charging.
Why it made the shortlist
The ECI Power kit costs $165.99 and bundles a 12V 20Ah LiFePO4 battery (about 256Wh), one 100W monocrystalline rigid panel, a 10A PWM controller, a pair of 10ft 12AWG MC4 solar cables and a pair of 6ft battery cables. The listing says the battery is lab-tested to a minimum of 2,000 cycles at 80 percent depth of discharge and up to 5,000 cycles at 50 percent, and that the controller detects 12V or 24V and uses a CC-CV charging profile suited to lithium.
What works
- Controller is set up for lithium charging
- Cycle life is stated at two depths of discharge
- Detects 12V or 24V systems automatically
Watch out for
- Battery stores only about 256 watt-hours
- No inverter, so no household outlets
- The catch
- It ranks first for newcomers because it is the cheapest complete system and the only one whose controller is described as programmed for LiFePO4.






