--- product_id: 2339614 title: "Optima Digital 400 12V Performance Maintainer and Battery Charger" brand: "optima" price: "€ 10.45" currency: EUR in_stock: false reviews_count: 8 url: https://www.desertcart.hr/products/2339614-optima-digital-400-12v-performance-maintainer-and-battery-charger store_origin: HR region: Croatia --- # Spark-free Tech LCD Display 12V Power Optima Digital 400 12V Performance Maintainer and Battery Charger **Brand:** optima **Price:** € 10.45 **Availability:** ❌ Out of Stock ## Summary > 🔧 Charge Smart, Live Smart! ## Quick Answers - **What is this?** Optima Digital 400 12V Performance Maintainer and Battery Charger by optima - **How much does it cost?** € 10.45 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/2339614-optima-digital-400-12v-performance-maintainer-and-battery-charger) ## Best For - optima enthusiasts ## Why This Product - Trusted optima brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Innovative Design:** Dual-purpose hook and tilt stand for easy use. - • **User-Friendly Interface:** Hybrid LED gauge for clear charging status. - • **Recover the Unrecoverable:** Revive batteries down to 1.25V that others can't touch. - • **Maximize Your Battery Life:** Experience peak performance with built-in health mode. - • **Versatile Charging Options:** Perfect for marine, motorcycle, and AGM batteries. ## Overview The Optima Digital 400 12V Performance Maintainer and Battery Charger is a versatile and efficient solution for maintaining and charging various battery types, featuring advanced technology to maximize battery life and performance. ## Description The OPTIMA Chargers Digital 400 12V Performance Maintainer and Battery Charger automatically maximizes battery life and performance with a built-in battery health mode. It also offers a hybrid LED battery charging gauge with LCD screen and a quick-set battery type selection for easy operation. And because it recovers discharged batteries that others cannot, this is the maintainer that is a must have in your garage. Review: Reliable, Smart Charger — Perfect for AGM & Storage Use - The Optima Batteries Digital 400+ 12V Battery Maintainer and Charger has quickly become my go-to charger for everything from automotive AGM batteries to powersports batteries. It’s super easy to use, with clear indicators and smart charging logic that keeps the battery healthy instead of overcharging it. I especially appreciate the maintainer mode — I can leave it connected during long-term storage and know the battery will be ready to go. Build quality is excellent and it feels solid and professional — not like a bargain-bin charger. It recovers low batteries well and works great with AGM setups. One thing that really made this charger even more convenient was pairing it with the OYMSAE 25ft SAE Extension Cable. The extension plugs right into the charger leads and gives a ton of extra reach, so I can keep the charger in a safe spot while the vehicle stays parked where it is. The connectors fit snugly and the cable feels heavy-duty, so there’s no power or connection issues. If you’re getting the Digital 400+, I highly recommend grabbing that extension cable too — together they make an awesome setup for maintaining and charging multiple vehicles. Review: Voltage Readout Most Important Feature To Me - NOCO GB40 Boost Plus & Optima Charger Initial Setup & Battery Issues - Upon arrival (04.27.25), connected the Optima Charger directly to my AGM battery. - Battery showed 1.5V—manual states device requires <2.5V to connect, and indeed, it wouldn't connect. NOCO GB40 Boost Plus - Emergency Jump Start - Borrowed a NOCO GB40 Boost Plus to attempt increasing battery voltage. - Turned the key in the car—no lights, no reaction. - Used the "!" button (hold for 3 seconds) on NOCO to deliver extra voltage. - Bam! Car lights switched on, and I was able to start it—pretty amazing. Charging with Optima Charger - Let the car run briefly to charge the battery, but it shut off after a few minutes (Toyota Prius Hybrid). - Disconnected NOCO, then immediately plugged in Optima Charger (already connected to battery). - Charger powered on, connected instantly, and displayed 13.2V—AGM battery appeared nearly fully charged (unexpected). - Within 5 minutes, voltage increased to 13.3V. Optima Charger Features & Observations - Easy operation—simply plug in, and it turns on automatically. - No power switch—just a power indicator light (not a button). - Requires selection of battery type using one of four buttons: - Confusion between two AGM options: - Optima AGM Common - Auto/Marine (Flooded & AGM) - Since I don’t have an Optima AGM battery, I selected Auto/Marine option. Overall Verdict - NOCO GB40 Boost Plus – Exceptional performance, saved my car, 5-star device. - Optima Charger – Reliable, straightforward, and well-built: - Reads voltage & amps, providing real-time battery status. - Bulky but durable—manual advises not to drop it. - LED screen looks outdated, but functionality matters more than aesthetics. - Comes with a 3-year warranty. - Worth keeping—serves as a trickle charger for long absences. - Cost comparison: - New battery (Toyota AGM): $250 - Optima Charger: Approx. $139 with tax - Savings: $111 Final Thoughts For anyone dealing with AGM battery maintenance, the Optima Charger is a no-brainer. It works as expected and delivers crucial real-time data. Highly recommended. ## Features - Automatically maximizes battery life and performance with a built-in battery health mode - Hybrid LED battery charging gauge with LCD display - Dual purpose hook and tilt stand design or hang it with the included wall organizer bracket - Works well as a marine battery charger, motorcycle battery charger, or other AGM battery charger. - Spark-free connection technology - Recovers discharged batteries other chargers cannot, down to 1.25V ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00DHGPVKI | | Best Sellers Rank | #16,996 in Automotive ( See Top 100 in Automotive ) #98 in Battery Chargers | | Brand | OPTIMA | | Built-In Media | Alligator clips, Charger, Ring Terminals | | Color | multicolor | | Current Rating | 4 Amps | | Customer Reviews | 4.5 4.5 out of 5 stars (2,116) | | Global Trade Identification Number | 00012501000670, 00811405001741 | | Input Voltage | 1.25 Volts | | Item Dimensions D x W x H | 3.7"D x 8.2"W x 7.4"H | | Item Type Name | Digital 400 12V Performance Maintainer and Battery Charger | | Item Weight | 1.6 Pounds | | Manufacturer | OPTIMA | | Mfr Part Number | 150-40000 | | Model Number | 150-40000 | | Output Voltage | 12 Volts (DC) | | Specification Met | 1.25 volts | | UPC | 012501000670 811405001741 | | Warranty Description | Amazon Manufacturer | ## Product Details - **Brand:** OPTIMA - **Color:** multicolor - **Item Weight:** 1.6 Pounds - **Output Voltage:** 12 Volts (DC) - **Product Dimensions:** 3.7"D x 8.2"W x 7.4"H ## Images ![Optima Digital 400 12V Performance Maintainer and Battery Charger - Image 1](https://m.media-amazon.com/images/I/81s0qy82WJL.jpg) ![Optima Digital 400 12V Performance Maintainer and Battery Charger - Image 2](https://m.media-amazon.com/images/I/81Y7Sb7qdkL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Does it work with Optima battery only or work with all brands?** A: It will work with any brand of battery. **Q: This optima charger how long is the warranty, thanks.** A: The length of warranty on paper doesn’t matter because getting them to act on it is difficult. They wanted me to send the charger to them at my cost and wait without a charger for 6?weeks **Q: Are the clamps made of plastic or are they built of some other material that will actually last?** A: The clamps are metal on the inside (obviously), and a durable plastic on the outside as insulating covers. Looks to be pretty durable, I've had no problems with them. But then, I tend to take care of my toys! :-) This unit, by the way, was an excellent investment...after having owned several less-capable chargers. This one restored my Yellow Top battery back to its full capacity in short order! I own a Tahoe Hybrid and had installed the Yellow Top as a result of standard batteries not holding a full charge after a year or two, and often draining when not running the Tahoe at least once every 4-5 days or so. Can connect full-time to the battery the accompanying cable, making the use of clamps unnecessary! Just have to remember to unplug it! **Q: How does it compare to the ctekcharger?** A: Recently my Optima Digital 1200 charger started giving erroneous readings, so I called the factory for repairs and they said "We do not repair the chargers". The Optima price is $200.00, you can by 3 Ctek chargers for this price. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Reliable, Smart Charger — Perfect for AGM & Storage Use *by P***S on January 6, 2026* The Optima Batteries Digital 400+ 12V Battery Maintainer and Charger has quickly become my go-to charger for everything from automotive AGM batteries to powersports batteries. It’s super easy to use, with clear indicators and smart charging logic that keeps the battery healthy instead of overcharging it. I especially appreciate the maintainer mode — I can leave it connected during long-term storage and know the battery will be ready to go. Build quality is excellent and it feels solid and professional — not like a bargain-bin charger. It recovers low batteries well and works great with AGM setups. One thing that really made this charger even more convenient was pairing it with the OYMSAE 25ft SAE Extension Cable. The extension plugs right into the charger leads and gives a ton of extra reach, so I can keep the charger in a safe spot while the vehicle stays parked where it is. The connectors fit snugly and the cable feels heavy-duty, so there’s no power or connection issues. If you’re getting the Digital 400+, I highly recommend grabbing that extension cable too — together they make an awesome setup for maintaining and charging multiple vehicles. ### ⭐⭐⭐⭐⭐ Voltage Readout Most Important Feature To Me *by C***E on April 29, 2025* NOCO GB40 Boost Plus & Optima Charger Initial Setup & Battery Issues - Upon arrival (04.27.25), connected the Optima Charger directly to my AGM battery. - Battery showed 1.5V—manual states device requires <2.5V to connect, and indeed, it wouldn't connect. NOCO GB40 Boost Plus - Emergency Jump Start - Borrowed a NOCO GB40 Boost Plus to attempt increasing battery voltage. - Turned the key in the car—no lights, no reaction. - Used the "!" button (hold for 3 seconds) on NOCO to deliver extra voltage. - Bam! Car lights switched on, and I was able to start it—pretty amazing. Charging with Optima Charger - Let the car run briefly to charge the battery, but it shut off after a few minutes (Toyota Prius Hybrid). - Disconnected NOCO, then immediately plugged in Optima Charger (already connected to battery). - Charger powered on, connected instantly, and displayed 13.2V—AGM battery appeared nearly fully charged (unexpected). - Within 5 minutes, voltage increased to 13.3V. Optima Charger Features & Observations - Easy operation—simply plug in, and it turns on automatically. - No power switch—just a power indicator light (not a button). - Requires selection of battery type using one of four buttons: - Confusion between two AGM options: - Optima AGM Common - Auto/Marine (Flooded & AGM) - Since I don’t have an Optima AGM battery, I selected Auto/Marine option. Overall Verdict - NOCO GB40 Boost Plus – Exceptional performance, saved my car, 5-star device. - Optima Charger – Reliable, straightforward, and well-built: - Reads voltage & amps, providing real-time battery status. - Bulky but durable—manual advises not to drop it. - LED screen looks outdated, but functionality matters more than aesthetics. - Comes with a 3-year warranty. - Worth keeping—serves as a trickle charger for long absences. - Cost comparison: - New battery (Toyota AGM): $250 - Optima Charger: Approx. $139 with tax - Savings: $111 Final Thoughts For anyone dealing with AGM battery maintenance, the Optima Charger is a no-brainer. It works as expected and delivers crucial real-time data. Highly recommended. ### ⭐⭐⭐⭐⭐ Perfect charger for all of my needs. *by M***6 on December 14, 2016* 6 months back I purchased a few new Optima Yellow Top batteries for my cars. My 75 Datsun 280Z rarely gets driven and I had forgotten to disconnect the battery before it sat for over a month without being started. When I went to start the car the battery was so dead that it wouldn't even start with the jump box attached to the battery. I pulled the battery out and took it to my local O'rileys Auto Parts where they took it and told me they would get it charged over night and call me. I waited 2 days without hearing from them and decided to go into the store. When I got there the guy said my battery still wasn't charged but they would keep it on the trickle charger for another night and see if it was up to 12v. It was sitting at about 11v when I picked it up the next say. The employees of the O'rileys told me that the battery was reading as good though and that most likely the battery was down to about 1/4 of its capacity and at the end of its life. When I told Amazon about the battery they immediately sent out a replacement. The replacement arrived looking like it had fell through the box so I was concerned about the condition of the battery. Amazon decided to refund my money for the battery. Instead of buying a 3rd battery I decided to buy a nice Optima charger, check the batteries out and charge them if possible. I left the original Optima on the charger overnight and found it at 13.4v and 100% capacity the next morning. Delighted with my find I grabbed the 2nd battery and placed it on the charger. Turns out that it was good as well but only about 40% charged. That was taken care of by the next morning. I guess the guys at O'rileys should invest in a good Optima charger. The charger seems well built and has a nice digital face. Simple options make setting up easy. Safety features like a warning and internal killswitch when on the wrong polarity. Goes through all stages of charging, conditioning and maintaining a battery on it own. Will charge a deeply discharged battery. Safe for Acid, gel or AGM style batteries. Monitors air temperature to provide the perfect charge. Feels very durable but looks nice at the same time. ## Frequently Bought Together - Optima Digital 400 12V Performance Maintainer and Battery Charger - 150-40000 - smofish Cord Organizer Holder, 8 Pack Magnetic Desk Cable Clips Management, Hide Phone Charging Cable Keeper, Strong Adhesive Wire Charger Holder for Nightstand, Kitchen Appliances, Office Supplies --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/2339614-optima-digital-400-12v-performance-maintainer-and-battery-charger](https://www.desertcart.hr/products/2339614-optima-digital-400-12v-performance-maintainer-and-battery-charger) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-17*