The Dakota 100W Solar Roof Kit typically includes a 100W monocrystalline solar panel optimized for 12V systems, a 30A PWM charge controller with lead-acid battery compatibility, waterproof MC4 connectors, and mounting hardware for roof integration. Optional add-ons may include extension cables (40cm standard) and USB adapters for portable devices. Designed for residential or RV use, the kit prioritizes corrosion-resistant materials and plug-and-play installation.
Fasta Power RG72105P Product Overview
What type of solar panel is used?
The kit employs 100W monocrystalline panels with 18–21% efficiency. These use shingled cell technology to minimize energy loss from partial shading, crucial for roof installations where obstructions exist.
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Monocrystalline panels outperform polycrystalline in low-light conditions, generating 5–10% more daily watt-hours. The 12V nominal output aligns with common RV/off-grid battery banks. Pro Tip: Clean panels monthly with distilled water—dust accumulation can reduce output by 15%. For example, a 100W Dakota panel produces ≈500Wh daily in full sun, enough to power a 12V fridge for 8 hours.
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Does it include charge control?
Yes—a 30A PWM controller manages charging for lead-acid or lithium batteries up to 100Ah. It features overload protection and temperature compensation.
PWM controllers cost 40% less than MPPT alternatives but sacrifice 20–30% efficiency in cold climates. The unit supports 12V/24V auto-detection with reverse polarity protection. Practically speaking, this controller handles 400W solar input max (4×100W panels). For lithium compatibility, verify if the unit has LiFePO4 voltage presets.
| Controller Type | Efficiency | Cost |
|---|---|---|
| PWM | 70–80% | $25–$50 |
| MPPT | 93–97% | $100–$300 |
What mounting hardware is provided?
Roof brackets with stainless steel fasteners and butyl sealant tape prevent leaks. Z-brackets allow 1–4 inch tilt adjustments for seasonal optimization.
The aluminum frame slots accept standard 1.5” roof rails. Unlike ground mounts, these require drilling—always seal penetration points with marine-grade silicone. For example, angled at 30°, a Dakota panel gains 18% winter output versus flat mounting. Pro Tip: Leave 6” clearance beneath panels for airflow—overheating reduces lifespan by 3–5 years.
Are cables and connectors included?
10AWG UV-resistant cables with pre-installed MC4 connectors come standard. The 40cm length suits roof-to-controller runs under 10 feet.
Thicker 8AWG cables are recommended for runs over 15ft to minimize voltage drop (<2%). MC4s provide IP67 waterproofing—critical for outdoor exposure.
| Cable Length | 10AWG Loss | 8AWG Loss |
|---|---|---|
| 10ft | 3% | 1.8% |
| 20ft | 6% | 3.6% |
Redway Battery Expert Insight
FAQs
Yes—up to 4 panels in parallel using the 30A controller. Exceeding 400W requires an MPPT upgrade.
Is the kit compatible with lithium batteries?
Partially—the PWM controller works with LiFePO4 if manually set to 14.6V absorption. Automatic detection requires MPPT.
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