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Description
4 AMP Automatic Smart Lithium and AGM Car Battery Charger & MaintainerDS18 INF C4A 6V 12V Portable Automatic Smart Lithium and AGM Car Battery Charger & Maintainer 4A With DS18s INF C4A, it's easy to maintain and charge your battery to ensure it will operate at its MAX, delivering uninterrupted power to your sound system and elevating your experience to new heights. Equipped with advanced charging and maintaining capabilities, the INF C4A is designed to power a wide range of battery types; including Lead Acid, Wet, Gel,
DS18 INF-C4A 6V/12V Portable Automatic Smart Lithium and AGM Car Battery Charger & Maintainer 4A
With DS18’s INF-C4A, it's easy to maintain and charge your battery to ensure it will operate at its MAX, delivering uninterrupted power to your sound system and elevating your experience to new heights.
Equipped with advanced charging and maintaining capabilities, the INF-C4A is designed to power a wide range of battery types; including Lead-Acid, Wet, Gel, AGM, and Lithium batteries using LiFePO4 cells. No matter the size and type of your battery, the INF-C4A effortlessly delivers a maximum output current of 4A, ensuring an efficient charging process. With voltage compatibilities for 6V and 12V systems, the INF-C4A is the most versatile charger available today.
The INF-C4A is equipped with a range of essential safety features, including thermal protection to prevent overheating, reverse connection protection to safeguard against accidental mistakes, and overcurrent/overcharge protection to maintain a healthy battery life. The INF-C4A also has an impressive IP54 protection rating. This means it is dust-tight, ensuring the internal components are shielded from any potential damage. This charger is also temperature tested and operates flawlessly in temperatures ranging from 0°C to +40°C.
DS18’s INF-C4A goes beyond standard charging and maintenance capabilities with it’s innovative repair mode. This advanced battery recovery mode can bring back batteries that have been neglected or plagued by common issues such as sulfation, stratification, or long periods of inactivity.
Intelligently designed to handle battery capacities ranging from 2Ah to an impressive 120Ah. Your battery’s size won’t matter, the INF-C4A provides the perfect charging and maintaining solution for all setups. DS18’s INF-C4A is an essential companion for every audio enthusiast.
Car Battery Not Included
Highlights
- Effortlessly delivers a maximum output current of 4A, guaranteeing swift and efficient charging.
- Versatile compatibility with 6V and 12V battery systems, offering flexibility for a wide range of applications.
- Supports battery capacities from 2Ah to an impressive 120Ah, catering to batteries of various sizes.
- Advanced safety features including thermal protection, reverse connection protection, and overcurrent/overcharge protection.
- Advanced battery recovery mode for repairing old, idle, stratified, or sulfated batteries
- LED function display provides intuitive feedback for easy monitoring of the charging process.
- Faulty battery indicator and faulty connection indicator ensure quick troubleshooting and seamless connections.
- Sleek and robust housing with an IP54 protection rating, shielding internal components from dust and potential damage.
- Operates flawlessly in temperatures ranging from 0°C to +40°C, ensuring reliable performance in any climate.
- Boasts an efficiency rating of approximately 85%, maximizing power transfer and minimizing energy wastage.
- Battery clamps provide a secure and reliable connection, making installation quick and convenient.
Great For
- Car Audio
- Pro Audio
- Powersports
- Motorcycle
- Jeep
- Bronco
- Marine
Technical Details
| SPECIFICATIONS | |
| Charger Type | 8 Steps Charging / Maintainer |
| Maximum Output Current (Charging) | 4A |
| Maximum Input Current | Variable up to 75W (0.68A) |
| Battery Type Compatibility | Lead-Acid, Wet, Gel, AGM, Calcium, Lithium (LiFePO4) |
| Battery Voltage Compatibility | 6 / 12 Volts |
| Battery Capacity Compatibility | 2~120Ah |
| AC Input | 110-120VAC / 50-60Hz |
| 6 Volts DC Output Current | 2A or 4A |
| 12 Volts DC Output Current | 2A or 4A |
| 24 Volts DC Output Current | N/A |
| Minimum Start Voltage | >3 Volts |
| Housing Protection Rate | IP54 |
| Temperature Operation | 0°C to +40°C |
| Efficiency | 85% Approx |
| MEASUREMENT | |
| Overall Length | 6.7" / 170mm |
| Overall Depth | 3.5" / 90mm |
| Overall Height | 2.2" / 56mm |
| AC Cord Length | 6ft / 1.8m |
| DC Cord Length | 4.2ft / 1.3m |
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
4.7 ★★★★★
Based on 841 reviews
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Product Reviews
★★★★★ 5
Better than our actual mattress!!
Style: 22", Color: Grey, Size: Queen, Style: 22", Color: Grey, Size: Queen
Purchased for company to stay with us in our apartment. I honestly had no idea they made air mattresses this tall until I saw a friend with one!
My husband and I tested it out last night. We were both really impressed!
1. Really easy to inflate! First time having an internal air pump. No more forgetting the pump! The motor wasn’t nearly as loud as our previous air pump! I was able to talk to my husband and he could still hear me over the pump running.
2. Really comfortable and supportive! We chose not to inflate it fully so it contoured to our bodies better. We slept on the mattress with no sheets and I wasn’t able to feel the creases in the top which was nice. No issues with sagging and we both didn’t wake up smooshed in the middle. My husband got up in the middle of the night and I didn’t notice. So movement of the mattress is minimal! Easy to get on and off with the 22” height.
3. Easy to deflate! We followed the instructions for folding and we got it in the storage bag with no issues. Just make sure all of the air is out before you fold it.
4. High quality! We had both of our small dogs on this with us. I was afraid of their nails poking a hole but so far so good! Only a little bit of air leaked out but it could’ve been the material stretching out during the night.
Cons: The pump does not shut off automatically when inflating or deflating. So keep an eye on it so it doesn’t overfill. The mattress does get cold at night. My husband and I both mentioned that in the morning. I had to roll up in my blanket to stay warm. I’ll try sheets on next time. In the summer it might not be that big of an issue. Ours came with one patch. Hopefully we won’t need to use it.
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Reviewed in the United States on March 15, 2026
★★★★★ 5
A lot of comfort for a very inexpensive price
Style: 18", Color: Grey, Size: Twin
We needed a spare mattress, but didn’t want to have a dedicated spare bedroom but wanted a comfortable bed. Couldn’t afford these high priced mattresses these days like the air beds or luxury coil spring with gel which are thousands of dollars. Miss air mattresses, very comfortable and adorable and I like the flocked top on it. And it has the self inflatable pump which is very easy and inconvenient.This makes a very inexpensive alternative. Even if it only lasts 6 months or so you can buy a whole lot of these for a lot less money than thousands of dollars for the other beds. In tax is a wonderful brand. I’ve bought it many times. Their vinyl material is very thick and durable. Intex makes flotation devices, blowup rafts, beach floaties, Kayaks, etc.
They have an excellent product & know what they’re doing.
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Great Queen Size Air Mattress - NO Fuss
Style: 18", Color: Grey, Size: Queen
Great air mattress! Comfortable to sleep on. Powerful pump. Nice size. The bag to store it is very convenient and one of the easiest to put bed in once deflated. Reviews spot on with this product.
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Skeptical at first, but after first use (so far) it’s a solid product
Style: 22", Color: Grey, Size: Queen
I initially bought this to stay at my MIL’s senior community (to help her get settled), so I didn’t want to spend a lot of money on it and I planned to leave it for other relatives that might want to visit. I expected it to be cheap-ish quality and probably not last through my two week stay.
First off, set up was a breeze. I laid it out and started inflation and it took about 4-5 minutes to fully inflate. The motor made noise, but it’s to be expected from something like this—I can say that it wasn’t as noisy as our Costco-bought mattress.
Second, it’s big—but that’s not a bad thing as much as I thought anyway after I saw it fully inflated. Turns out, for me, it’s a good thing. Our Costco mattress sits low to the floor and as it deflates a bit during the night, it’s tough to get up. This one (the 22” model and the largest one at this writing) is wonderful as I can sit on the edge of it and stand up easily. Your experience may be different, but for older folks it makes it really easy to get out of bed in the morning.
How does it sleep? Well, since I was visiting by myself and my significant other wasn’t with me, I can only speak for a single sleeper. It was really comfortable! It did take a bit of tweaking though as I thought I would like it more firm as I like to side sleep. The first couple of nights were a bit rough as I tossed and turned a bit in my sleep—I found that I couldn’t get comfortable on my side. For the reviews that say that it deflates after sleeping on it, I can say that it did seem to lose some air after the first two nights. The manufacturer does state that it does “stretch” and not deflate. As I wanted to test that statement, I didn’t change the firmness of it by re-inflating it to where I had it. The third and fourth nights were better sleep and I didn’t feel like the mattress deflated at all, so I found the stretch statement to be valid—it wasn’t losing air. After that night, I re-inflated it to where I thought I’d like it. The next night was the same tossing and turning that I had those first two nights, so I concluded that I needed to make it less firm and I actually DEflated it a bit and for the rest of the stay it was perfect! I didn’t have to touch it and I even unplugged it.
When I was getting ready to leave, I started the deflation process by turning the dial in the opposite direction. It took longer to deflate, so I walked away for a bit—I’d guess about 7-8 minutes. When I came back the mattress was flat as a pancake and ready to fold. This is the only hassle of the process as folding it to get it into the storage bag and back into the box (for storage). I do like the tote that they provide as the handles make it easy to lug about.
So, the first use was a success. If repeated uses reveal issues, I’ll report back. I will say that I plan to buy another one to replace our beloved Costco air mattress—she’s showing her age and the height of this one as well as the cost make it a no-brainer to get it as a second. We’ll use this one until it dies (if it even does) and then fall back on our old one if needed. I gave an overall 5 stars for the product with 4 stars for sleep quality and comfort only because your idea of these two might be a bit of a learning experience until you find your inflation sweet spot—so it’s not just an “inflate fully and use” type of scenario.
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Reviewed in the United States on May 2, 2024
★★★★★ 4
Comfortable, high-rise air mattress with built-in pump
Style: 22", Color: Grey, Size: Queen
The Intex Dura-Beam 22-inch Queen air mattress is one of the better inflatable beds I've used. The built-in pump is very convenient — no need for an external pump or battery-powered inflator. It inflates to full firmness in a few minutes and deflates just as quickly. The 22-inch height makes it easy to get in and out of, similar to a regular bed height. The plush comfort top adds a softer surface feel. The 600 lb weight capacity is reassuring for heavier users or couples. I've had guests sleep on this for multiple nights and they reported sleeping well. It held air overnight without significant deflation. My only note is to store it carefully to avoid punctures from sharp objects. Overall a great value for guests or camping.
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Reviewed in the United States on April 15, 2026