Renogy 400-Watt 12-Volt Solar Farmer Kit w/ 3 Packs of 12-Volt 100Ah Deep Cycle AGM Battery

The Renogy 400W 12V Solar Farmer Kit is a complete off-grid package: four 100W 16BB N-type solar panels, a Rover Li 40A MPPT charge controller, three 12V 100Ah deep-cycle AGM batteries, a 3000W 12V pure sine wave inverter, and a 500A battery monitor with shunt — plus the brackets, cabling, and fusing to connect it all. Per Renogy, it is designed for workshops, sheds, and DIY off-grid power projects. OffGrid Horizon is a family-owned authorized Renogy dealer serving the US market.

Who This Kit Is For

This kit fits detached workshops, sheds, barns, and other outbuildings where trenching grid power isn't practical. Per Renogy's description, it powers lights, chargers, and intermittent tool use — the 3,000W inverter handles saws and compressors in bursts, while the AGM bank covers steady smaller loads. AGM chemistry keeps the up-front cost down and tolerates unheated storage; if you'll cycle the bank deeply every day, consider the lithium version of this kit instead — call us to compare.

Key Features

• Complete kit: generation, charge control, storage, AC power, monitoring, and connection hardware in one order.
• 400W solar array: four compact 100W 16BB N-type panels (34.1 x 22.8 in each); N-type cells rated up to 25% cell efficiency, per Renogy.
• Rover Li 40A MPPT charge controller: 12V/24V auto-recognition and up to 100VDC PV input, per Renogy.
• 3.6kWh AGM battery bank: three maintenance-free, sealed 12V 100Ah deep-cycle AGM batteries rated 500 cycles at 50% DOD, per Renogy.
• 3000W pure sine wave inverter: 120V/60Hz output with 6,000W surge for motor starts, per Renogy.
• 500A battery monitor with shunt included, so you can watch real state of charge instead of guessing from voltage.
• Fusing included: 40A ANL fuse set, ANL fuse cable, and waterproof in-line fuse holder.

Why Renogy

Renogy has built off-grid solar equipment since 2010, and its complete kits pair controller, cabling, and protection sized to the array and bank — the sizing work is already done. As an authorized dealer, OffGrid Horizon sells genuine Renogy stock covered by Renogy's per-component warranties.

What's In the Box

Component list per Renogy's kit listing:

• 100W 16BB N-Type Solar Panel x4
• Rover Li 40A MPPT Solar Charge Controller x1
• 12V 100Ah Deep Cycle AGM Battery x3
• 3000W 12V Pure Sine Wave Inverter x1
• 500A Battery Monitor with Shunt x1
• Solar Panel Mounting Z Brackets x4 (sets)
• Solar Y Branch Connectors
• Solar panel to charge controller adaptor kit
• Battery to charge controller tray cables
• Copper battery interconnect cables
• ANL fuse cable + 40A ANL fuse set
• 20A Waterproof In-Line Fuse Holder
• Battery inverter cables

Specifications

What Will It Run?

Stated assumptions: estimates assume 4.5 peak sun hours per day (mid-range US annual average; regional values roughly 3.5 to 5.5), 25% combined system losses, and AGM discharge held to 50% DOD — the depth Renogy's cycle rating uses. Appliance wattages are typical estimates.

• Estimated daily solar harvest: 400W x 4.5 h x 0.75 ≈ 1.35kWh per day under those assumptions.
• Usable storage: about 1.8kWh at 50% DOD.
• Example workshop day (~1.1kWh): LED shop lights (~0.2kWh), battery chargers for cordless tools (~0.3kWh), a fan or radio (~0.2kWh), plus roughly 20 minutes of circular saw or compressor time (~0.4kWh).
• Limits: a 1,500W tool draws about 140A from a 12V bank — fine in bursts, but sustained heavy loads will exhaust the AGM bank quickly and shorten its life. For daily deep cycling, lithium is the better fit.

Warranty & Support

Per Renogy: rigid panels carry a 10-year material and workmanship warranty with tiered power output coverage (95% at 5 years, 90% at 10 years, 80% at 25 years); AGM batteries carry a 2-year prorated material and workmanship warranty; the 3000W inverter carries a 1-year material and workmanship warranty. Remaining components carry Renogy's standard limited warranty. OffGrid Horizon is family-owned — call (302) 496-3554 and a real person will help.

Shipping

With roughly 192 lb of batteries alone, this kit ships LTL freight on a pallet within the US. The carrier schedules delivery with you; a liftgate is typical for residential stops. Inspect all cartons before signing the delivery receipt — batteries especially — and note any damage on the receipt, then contact us immediately.

Frequently Asked Questions

Why choose AGM over lithium?
Lower up-front cost, tolerance of unheated spaces, and simple maintenance-free operation. The trade-offs are weight (63.9 lb per battery), shallower recommended discharge (50% vs 80%), and shorter cycle life. This same kit is available with LiFePO4 batteries — call us to compare for your use.

Can it run a refrigerator or freezer full-time?
A small, efficient unit (~0.8-1kWh/day typical) would consume most of the estimated daily harvest, leaving little for tools and lights. It works in mild conditions, but budget your loads carefully or step up in array size.

Can I expand the solar array?
Modestly. Per Renogy, the Rover Li 40A tops out at 100VDC input, and its power ceiling on a 12V bank leaves limited headroom above the included 400W. Call us before adding panels.

Will the inverter start my compressor?
The 6,000W surge rating per Renogy covers most small and mid-size shop compressors, but check your motor's locked-rotor draw — large compressors may exceed it.

What does the battery monitor add?
The shunt counts amp-hours in and out, giving a true state-of-charge reading. With AGM banks, voltage alone is a poor gauge, so the monitor helps you stay above 50% DOD and protect battery life.

Do the AGM batteries need maintenance?
They are sealed and maintenance-free — no watering. Keep terminals clean and torqued, and recharge promptly after use for the longest service life.

Outfitting a barn or shop? Call our family at (302) 496-3554, or see the full Renogy collection for more sizes.