Amazon offers the Renogy 100W 12V Monocrystalline Solar Panel forÂ $103.03 shipped. For comparison, it has a list price of $150 and it usually sells for around $130. Todayâ€™s deal is within $5 of the Amazon all-time and just the second discount that weâ€™ve seen in 2018. This solar panel is compatible with 12V system and can be wired into a 24 or 48V battery. Learn more on the product page. Rated 4.7/5 stars.