The D250SE (CTEK Part No. 40-315) is a DC to DC fully automatic charger that’s designed to charge a Service Battery and is powered by the alternator/starter battery. With dual inputs the D250SE is also solar compatible (a standard solar controller is not necessary). The D250SE charger supplies up to 20A of power to any 12V lead-acid or lithium service battery from 40–300Ah. It also works if the starter battery and service battery are different chemistries, for example if the starter battery is lead/acid and the service battery is lithium. (Note: a service battery may also be called an auxiliary/aux battery, house battery, secondary battery, or backup battery.) This is a great charger for our V1 and V2 Lithium Deep Cycle Batteries.
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Description
CTEK D250SE 12V Smart Charger 20AThe D250SE (CTEK Part No. 40 315) is a DC to DC fully automatic charger thats designed to charge a Service Battery and is powered by the alternator starter battery. With dual inputs the D250SE is also solar compatible (a standard solar controller is not necessary). The D250SE charger supplies up to 20A of power to any 12V lead acid or lithium service battery from 40300Ah. It also works if the starter battery and service battery are different
Dual Inputs
The D250SE CTEK Charger has dual inputs and can charge the service battery from the alternator or a solar panel or both. The charger is designed to work with smart alternators and can still operate if the alternator is shut off but the vehicle has access to solar or wind power. So it can use power from the alternator, solar panel, wind power, or any DC power source can be used through the solar input port (within voltage spec). The D250SE can also charge the service battery from the solar input and the alternator in parallel using its built-in regulator to save fuel.
Optimum Charge
Continuous charging while the vehicle’s on the move means the batteries are fully charged in the shortest possible time. The built-in temperature sensor compensates for hot or cold conditions to prevent the battery from overheating or overcharging, so it always gets the optimum charge.
When the service battery being maintained is fully charged, the D250SE will automatically redirect overflow charge power to top-off the starter battery. The D250SE can maintain a stable output up to 20A to vehicles fitted with smart ECU controlled alternators.
LITHIUM
5-Step Program
- Accept*: Tests if the battery can accept charge. This step prevents that charging proceeds with a defect battery. (*Step 1 for lead/acid is Desulphation)
- Bulk: Charging with maximum current until approximately 90% battery capacity*. (80% capacity for lead/acid.)
- Absorption: Charging with declining current to maximize up to 95% battery capacity*. (100% capacity for lead/acid.)
- Float: Maintaining the battery voltage at maximum level by providing a constant voltage charge.
- Pulse: Maintaining the battery at 95–100% capacity. The charger monitors the battery voltage and gives a pulse when necessary to keep the battery fully charged.
Video about D250SE Charger
Specs
- CTEK PN: 40-315
- Input: 11.5–23V, 25A
- Output: Max 14.4/14.2/14.7V, 20A max
- Back-Current Drain*: Less than 1Ah/month
- Ambient Temperature: -4°F to +122°F (-20°C to +50°C)
- Battery Types: 12-Volt WET, EFB, Ca/Ca, MF, AGM, GEL, Lithium (LiFePO4, Li-Fe, Li-iron, LFP)
- Battery Capacity: 40–300Ah
- Insulation class: IP65 (splash and dust proof)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Perfect Replacement for Loofahs
Scent: White with Green Edge
I really like these myHomeBody Dual-Textured Exfoliating Washcloths. Where other options only have the roughness, this set has a soft side and a rough side. Having the soft side not only increases how far soap goes (these produce a ton of suds!), but also makes the towels easier to grip and use.
The rough side is the perfect roughness for replacing loofahs, and is great for exfoliating and managing things like keratosis pilaris.
I am so happy with these! I am definitely ordering more.
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Reviewed in the United States on May 2, 2025
★★★★★ 5
My new washcloth every time I shower at home or the gym
Scent: Gray
I initially used an Axe loofa with the scrub pad on one side and a plastic mesh on the other. However, I also wanted a washcloth to clean crevices such as ears, toes, and *other* parts. This product marries the two parts I want (cloth/scrub). The cloth side is soft for cleaning inside the ears, on eyelids, etc., and the scrub side is perfect for the rest of my skin and makes it smooth and healthy-looking. I use a fresh one every time I shower so there is no bacteria growth, and I use it when showering after gym workouts. Also, there's a loop on them so they can hang from the water handle when you're not using it.
I wash them with my regular laundry without damage to my clothes from the scrub side; just let them dry completely before placing them in the hamper so mold doesn't grow. I've had them for 6 months and they still look new, so it's worth the extra $ for that reason. My only suggestion is that they offer to sell them in packs of 5 or 7 at a lower price per washcloth, so it's cheaper to buy a week's set in one purchase.
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Reviewed in the United States on November 23, 2023
★★★★★ 5
If you're partial to mesh loofahs, get these instead!
Scent: Gray
Here I am, a 33 year-old guy and avid death metal fan. Writing reviews for, and getting excited about exfoliating shower cloths. I'm not sure what brought me to this point in life, but I'll attempt to share some wisdom now that I'm here.
Before these cloths entered my life, I was supremely dedicated to showering with traditional mesh loofahs. They had a good "scrub factor" and showering with bare soap bars or normal cotton wash cloths just made me feel like I was pushing soap around without actually getting clean. Well, I eventually got frustrated with having to keep a bunch of them stocked in the bathroom cabinets and the enormous amount of waste they produce. It's recommend to replace traditional mesh shower loofahs every 8 weeks, but uhhh.. who are we kidding? You'd be lucky to use one for half that length of time before the knot loosens up and it all unravels on you.
Enter: these things! These double-sided wash cloths take everything I enjoyed about mesh scrubbers and put it all into a different form-factor. Both the soft side and the exfoliating side make a rich lather with a minimal amount of body wash, which is something you WON'T get with regular wash rags. These cloths are strong, well-made, and mostly importantly they won't unravel into a pile of cheap plastic. Another advantage these have over regular cotton rags is that they're made of a quick-drying material, which makes it a lot harder for bacteria to harbor and grow. A thorough rinse along with a firm wringing to expel the excess water before hanging it up to dry, and you're good to go! One more advantage these have over loofahs and sponges is how much better the cloths are for getting into tighter spaces (I'm specifically referring to cleaning feet and in-between toes, but yes, it'll get THOSE areas nice and clean too) 👌.
At $20 for a 3-pack (on sale for $15 at the time of this review), these cloths are more expensive when compared to the cheap mesh loofahs that you can pick up for $2-3 a piece. But trust me when I tell you that these cloths will far out last even the most premium loofahs, and they clean infinitely better as well.
Give 'em a shot, and maybe one day you'll start getting excited about boring, dumb adult stuff too! 🤘
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Reviewed in the United States on April 4, 2022
★★★★★ 4
I like it just not the soft side
Scent: Gray
Now when I looking for cloths. I was looking for a face one. There was a photo here that showed a up close shot of the texture of the rough side... that's what made me get it. And I'm honestly happy that I did.
I literally just came out the shower. Im air drying while writing this lol. To talk about how it's worth the money getting this. Im surprise they don't have more ratings.
When you look at the video for this product it looks dramatic cause it is. Its meant to be. but when they actually mention details about the product...... its the honest truth.
The rough I love it. I actually feel like I have a new skin after rubbing all the dead skin off my body and used another one to rub my feet (never mix the two lol) so the rough side of the product has 100% 👍🏽 👍🏽 from me.
But the soft side. Ehh honestly it isn't for me if the soft side was a bit more rough. I would love it. But when I used it it felt like I was just rubbing batter on me or something like that.
If they made a glove version of this I would buy 1 for each day of the week lol. If they another cloth that didn't have such a soft side I'll buy that instead.
But honestly this product is amazing and worth the money they're asking form. Which isn't a lot. Believe me you'll feel better after that good scrub down... just be gentle at certain areas and on your neck.
I'm going to buy the actual face one from this company on my next pay check. So worth it
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Reviewed in the United States on January 5, 2022
★★★★★ 5
Love them
Scent: White with Green Edge, Scent: White with Green Edge
Perfect disposable loofers that wear well. Better than a face cloth. Have reordered them 2x. Perfect loop to hang on soap dish holder.
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Reviewed in the United States on March 22, 2026