Home Dec CTK300-II Solar Charge Controller: MPPT technology for efficiency
"The unsung hero of any off-grid setup." That's the solar charge controller in a nutshell. This little box is the brain of your solar power system, sitting between the panels and the battery. Its job? To manage the flow of energy, ensuring batteries charge efficiently and safely—no overcharging, no undercharging. Think of it as a smart gatekeeper that squeezes every last drop of power from the sun, which translates to longer battery life and a more reliable setup overall.
Where does it shine? Pretty much anywhere you need dependable power without a grid: RVs cruising down the highway, boats bobbing on the water, remote cabins in the woods, or even backup systems for when the main power fails. The secret sauce here is MPPT tech—Maximum Power Point Tracking. It's like having a hyper-efficient converter that takes the higher voltage from solar panels and dials it down to just what the battery needs, even on cloudy days. The result? Less wasted energy, happier batteries, and a system that just works smarter, not harder. For anyone serious about solar, this isn't an accessory; it's a necessity.
Features
- 24-72V input voltage range
- Solar charging capability
- Compact and durable design
- MPPT technology for efficiency
General specs
- Brand: Home Dec
- Model: CTK300-II
- Seller: Joom
- ID: 64b50f55bdddd40178f9f0e8
- Input Voltage Range: 24-72V
- Technology: MPPT
- Charging Type: Solar
- First listed by seller: 8/24/25
If you are interested in more details, you can find full information on the seller's page.
View on seller's site
#publicidad
$68.86
Last price update: 11/15/25
Out of stock
Price History for seller Joom
| Date | Price |
|---|---|
| 11/15/25 | $68.86 |
| 8/24/25 | $60.99 |
Shipping options
Delivery to 
United States
United States
Unavailable
Comparison with similar products
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| Brand | Home Dec | Renogy | Flashfish | FF Flashfish | Flashfish | |
| Model | CTK300-II | RBC40D1S | TSP-18V-100W-RED | |||
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| Rating |
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| Price | $68.86 | $199.99 | $88.00 | $86.00 | $129.00 | $25.99 |
| Seller | Joom | Amazon | Gshopper | Gshopper | Gshopper | Gshopper |
| Update | November 14, 2025 | December 6, 2025 | July 25, 2024 | July 25, 2024 | July 25, 2024 | July 25, 2024 |
| Power Output | 18V/60W | 50W | 18V 100W | |||
| Charging Ports | DC output, PD Type-C, QC3.0 | DC Output, PD Type-c, QC3.0 | Multiple | |||
| Design | Foldable, Portable | Foldable | Foldable, Portable | |||
Solar Charge Controller
$68.86
