I have previously tried a 1600w unit with a built in battery controller. I haven't had any luck with this device. With this device, you need a separate battery controller, and a separate battery controller is what you need. This gives you much more control over your solar system. I like this device because it gives you voltage and power readings.
CARKU Pro-10 black/red
91 Review
Mroinge Automatic 6V/12V Trickle Charger For Vehicles, Motorcycles, Boats And More - Maintain Your Batteries With Ease!
29 Review
Keep Your Battery Fully Charged With A Smart 12V Charger/Maintainer Featuring Winter Mode
28 Review
70mai Jump Starter Max Midrive PS06 black
37 Review
Rechargeable screwdriver OA-3,6F (433.0.2.00), 3.6 V, 1.3 Ah Li-ion, blister
46 Review
Cordiant Winter Drive 2 255/55 R18 109T
33 Review
Xiaomi Mijia Ratchet Screwdriver 16 in 1 Screwdriver with Interchangeable Bits, 10 pcs, Black
22 Review
Bit and socket set Stels Tool set, 1/2", 1/4", CrV, plastic case 94 pcs, Stels, 94 pcs, black
46 Review