The Best Solar Panel For Your Ctek D250sa Battery

Nothing is worse than spending a chunk of money on an expensive piece of equipment and realizing it hasn’t been working well with your vehicle battery charger when you need it most; for example, when you’re stuck on the side of a road in the middle of nowhere, at night. 

With a Ctek D250sa charger, it is essential that you find a solar panel that fits your budget, efficiently charges the battery and fits your lifestyle. 

To help you avoid any potentially dangerous situations due to a bad solar panel pairing, we will talk about the following:

  • different types of solar panels
  • our picks for the best solar panel for a check d250sa battery
  • Q&A

Now more than ever, being environmentally friendly is extremely important. Having a car solar panel is environmentally friendly and can save you car trouble when you most need it. 

Here’s what you need to know.

Solar panel on an angle

What Are the Different Types of Solar Panels?

Solar panels contain a semiconducting material that converts sunlight into electricity. Most solar panels use a silicon semiconductor, but this is not always the case. 

Here are some of the pros and cons you’ll see in each type of solar panel. 


Made up of single crystals of silicon, monocrystalline solar panels have the highest solar efficiency and power capacity. 

They reach efficiencies of about 20% and have wattage modules as high as 300 watts.

The main downside to monocrystalline solar panels is the high cost due to the energy-intensive process of using silicon crystals to make the product. 


Although polycrystalline solar panels use panels made of silicon, the silicon crystals used to make this panel are first fragmented and melted together in wafers before being used in production. 

Solar Panel FAQ Video x
Solar Panel FAQ Video

These panels usually have energy efficiency levels between 15-17% and wattage modules below 300 watts. 

Polycrystalline panels usually are cheaper than monocrystalline panels, but they don’t come close to producing as much power as a monocrystalline panel makes. 


Unlike polycrystalline and monocrystalline panels, thin-film panels can be made from various materials like cadmium telluride layered between transparent conducting layers to produce energy.

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These panels can be made from Copper Indium Gallium Selenide or amorphous silicon.

Thin-film panels are known to be much smaller and easier to hide than other varieties of solar panels. 

Their size is partly what makes their energy efficiencies so low at around 11%. 

Price varies depending on the material used. 

What Are the Best Solar Panels for a Check d250sa Battery?

In general, a good rule of thumb is choosing a solar panel with the same wattage as the battery has amphoras.

A Cteck d250 Battery contains a battery capacity between 40-300 amp-hours so that the ideal battery would have a wattage between these numbers. 

It also has a battery voltage of 12 V, so you will want a panel with a wattage output of around 12 Volts DC.

Size and price will vary depending on what you want to spend on the panel, but many options are available for all price points and style preferences.

Here are our picks for the best solar panels for a Check d250sa battery.

Renogy 100W 12V Monocrystalline Off Grid Panel

The Renogy Monocrystalline Panel is a great middle-of-the-road panel. Some of its features include:

  • A corrosion-resistant aluminum stand
  • Set of two 50 W monocrystalline panels totaling an energy wattage of 100 W
  • 15 inch wide set of panel connectors

What makes this panel stand out from the crowd is its portability and the ability to add more panels to the system if needed. 

The stackability of the panels allows you to adjust the wattage as you prefer. 

Renogy panels also receive praise for having a high performance in low-light environments. 

Downsides to the Renogy Monocrystalline panel are its larger size and lack of an included charger.

Renogy 100 Watt 12 Volt Solar Panel Starter Kit with 100W Monocrystalline Solar Panel + 30A PWM Charge Controller + Adaptor Kit + Tray Cables + Mounting Z Brackets for RV Boats Trailer Off-Grid System
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Renogy 100 Watt 12 Volt Solar Panel Starter Kit with 100W Monocrystalline Solar Panel + 30A PWM Charge Controller + Adaptor Kit + Tray Cables + Mounting Z Brackets for RV Boats Trailer Off-Grid System
  • [Wide Application] 400Wh daily output depends on the 4 hours sunlight availability.This panel is suited for applications that require a smaller footprint, making it a favorite for those with RVs, campers, and more!
  • [Excellent Performance] 21% High solar cell efficiency. Corrosion-resistant aluminum frame for outdoor use, allowing the panels to last for decades as well as withstand high winds (2400Pa) and snow loads (5400Pa).
  • [Multiple Protection] Renogy Wanderer-Li is a 30A PWM solar charge controller that integrates efficient PWM charging to increase battery life and improve system performance. It can prevent the battery from over charge, over voltage, discharge and short circuit, reversed polarity protection.

Sunsul100W 12V Monocrystalline Solar Panel Kit

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At about $130, the Sunsul Monocrystalline panel is perfect for those on a budget but still want a quality product. Its features include:

  • High-efficiency monocrystalline cells with a 23% conversion rate
  • 12V 30A charge controller
  • 196.8-inch solar cable
  • Strong mounting tools

This is a strong panel for the price, but it is not portable.

The Sunsul monocrystalline panel would fit those looking to have a charging station at a specific location and not those looking to have a mobile charging experience. 

SUNSUL 100W 12V Monocrystalline Solar Panel Kit, with 30A 12V/24V PWM Charge Controller for Outdoor RV Boat Trailer Camper Marine Off-Grid Home (100 Watt with Accessories)
  • High Efficiency - 100W solar panels made of high-efficiency monocrystalline cells have an effective conversion rate of up to 23%. Using low iron tempered glass, weatherproof EVA film, and high-quality aluminum frame, Windproof and rainproof, it can be used outdoors for more than 10 years(10 years later, the solar energy conversion rate will decline over time).
  • Multiple Scenes - 12 Volt solar panel is an Ideal solar power kit for 12 Volt battery charging system and various 12V DC applications. A variety of scenarios for RV, car, boat, portable power station, outdoor generators, fences, security cameras, greenhouse, camper, lawnmower, motorcycle, jet ski, trailer, camper, home, etc.
  • 12V/24V 30A Charge Controller - Smart 4-Stage PWM charging (Bulk, Boost, Float, and Equalization) increases battery life and improves system performance. Intelligent protection against reverse polarity, overcharging, short-circuit, and reverse current. 2 USB 5V/2A output ports support mobile phones, tablet PCs, or other devices requiring 5V voltage.

Newpowa 100 Watts 12 Volts Polycrystalline Solar Panel

The Newpowa Polycrystalline panel is a balance between the Sunsul and Renogy panels. It features:

  • Small size for portability
  • One 100 W polycrystalline panel
  • Pre Installed bypass diodes to minimize sudden power drops
  • Durable TBT back sheet

This panel is both portable and affordable, with many additional benefits in the panel’s fine details, including the pre-installed bypass diodes and TBT back sheet that make the panel such a great bargain. 

Unfortunately, the Newpowa panel does not include a charger or any necessary wires. Some of the money you save buying the panel will need to go into purchasing those items. 

Newpowa 100 Watts Monocrystalline 100W 12V Solar Panel High Efficiency Mono Module RV Marine Boat Off Grid
  • New Design: Smaller in size, same output, higher cells effciency compared to most other brands
  • Dimension: 44.49*20.08*1.18inch, high winds (2400PA) and snow loads (5400PA)
  • Maximum Power (Pmax): 100W, voltage at Pmax (Vmp):16.77V, current at Pmax (Imp): 6.26A

What Are Some Frequently Asked Questions about Solar Panels?

Here are some frequently asked questions regarding choosing the best type of solar panel for your battery.

  • Are portable solar panels better than stationary panels? – In general, stationary solar panels are capable of higher watt outputs, but this can be an inconvenience for those looking to have a portable way to keep their battery charged.
  • Do I need a charge controller? – Yes, you will need a charge controller to avoid overcharging your battery. Most solar panels come with these controllers.
  • Are there any other required parts I will need in addition to the solar panel? – You will need a charging controller, a primary wire, and a pair of battery terminals for most solar panel installations.
  • Will my solar panels work at night? – No, solar panels will not work at night. Depending on the model you buy, most solar panels will produce extra electricity in the day to be functional at night. 


Solar Panels Brands FAQ

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