--- product_id: 17483206 title: "Lithium 4s 0.8A, TM-471, 8-step 12.8V 0.8A sealed battery saving charger & maintainer" brand: "optimate" price: "β‚±11599" currency: PHP in_stock: true category: "Opti Mate" url: https://www.desertcart.ph/products/17483206-lithium-4s-0-8a-tm-471-8-step-12-8v store_origin: PH region: Philippines --- # 0.8A precise charging current 8-step smart charging process Integrated BMS battery protection Lithium 4s 0.8A, TM-471, 8-step 12.8V 0.8A sealed battery saving charger & maintainer **Brand:** optimate **Price:** β‚±11599 **Availability:** βœ… In Stock ## Summary > πŸ”‹ Charge smarter, last longer β€” never get left powerless! ## Quick Answers - **What is this?** Lithium 4s 0.8A, TM-471, 8-step 12.8V 0.8A sealed battery saving charger & maintainer by optimate - **How much does it cost?** β‚±11599 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/17483206-lithium-4s-0-8a-tm-471-8-step-12-8v) ## Best For - optimate enthusiasts ## Why This Product - Trusted optimate brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **3-Year Warranty:** Confidence backed by a solid manufacturer guarantee. - β€’ **BMS Wake-Up Mode:** Revives β€˜dead’ LiFePO4 batteries other chargers give up on. - β€’ **Sealed Battery Safe:** Designed specifically for sealed Lithium batteries to prevent damage. - β€’ **Compact & Lightweight:** Portable 1-pound design fits perfectly in any professional toolkit. - β€’ **Smart 8-Step Charging:** Optimizes battery health with precision stages for longer life. ## Overview The OptiMATE Lithium 4s 0.8A TM-471 is a cutting-edge 8-step 12.8V battery charger and maintainer engineered for sealed Lithium (LiFePO4) batteries. With integrated BMS protection and a unique wake-up mode, it safely revives and extends battery life, delivering reliable 0.8A charging in a compact, durable design backed by a 3-year warranty. ## Description Buy OptiMATE Lithium 4s 0.8A, TM-471, 8-step 12.8V 0.8A sealed battery saving charger & maintainer: Battery Chargers - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases ## Features - Longer battery life and more battery power guaranteed. - Ultimate protection for your high-performance Lithium (LiFePO4 / LiFe / LFP) battery. - Saves dead batteries other chargers can't! - BMS (Battery Management System) wake up mode safely wakes battery with integrated BMS protection out of sleep mode. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00Y38X7WI | | Amperage | 0.8 Amps | | Battery Charge Time | 6 Hours | | Best Sellers Rank | #83,980 in Automotive ( See Top 100 in Automotive ) #369 in Battery Chargers | | Brand | OptiMate | | Built-In Media | Battery Charger, Battery Lead, Battery Clips | | Color | Black, Blue, Red, Silver | | Connector Type Used on Cable | clamps and ringlet connector | | Current Rating | 0.8 Amps | | Customer Reviews | 4.7 4.7 out of 5 stars (766) | | Global Trade Identification Number | 05425006145718 | | Input Voltage | 12 Volts | | Item Dimensions D x W x H | 6"D x 8"W x 3"H | | Item Type Name | OptiMate Lithium 4s 0.8A, TM471, 8-step 12.8V 0.8A Lithium Expert Battery Saving Charger & Maintainer | | Item Weight | 1 Pounds | | Manufacturer | OptiMate | | Mfr Part Number | TM-471 | | Model Number | TM-471 | | Number of Ports | 1 | | Output Voltage | 12 Volts (DC) | | Specification Met | CEC | | Unit Count | 1.0 Count | | Warranty Description | 3 Years | ## Product Details - **Brand:** OptiMate - **Color:** Black, Blue, Red, Silver - **Item Weight:** 1 Pounds - **Output Voltage:** 12 Volts (DC) - **Product Dimensions:** 6"D x 8"W x 3"H ## Images ![Lithium 4s 0.8A, TM-471, 8-step 12.8V 0.8A sealed battery saving charger & maintainer - Image 1](https://m.media-amazon.com/images/I/81iACDxBz7L.jpg) ## Questions & Answers **Q: Capacity of my lithium battary is 100ah, if it discharge 70 %,would this charger to charge battery to full capacity?** A: Yes, provided that your battery cells are in good condition and are able to take/hold a charge, this charger will charge it to 100% **Q: Will this charge lithium iron batteries like Shorai?** A: I've been using it on my Shorai battery for about 1 year and it works Great! **Q: Can I get it with eu plug?** A: We don't offer the EU plug, but it can be used with an EU plug (100-240V). **Q: How long will it take to charge 80 as (group 27) lithium lifepo4 battery? 20 hours, or few days? thanks** A: Instructions say it will take 125% of the battery AH capacity for the battery to charge, so I assume you multiply your amp hours by 125% to get a rough estimate ## Frequently Bought Together - OptiMATE Lithium 4s 0.8A, TM-471, 8-step 12.8V 0.8A sealed battery saving charger & maintainer - Antigravity ATZ-10 Performance Lithium Motorcycle Powersport Battery with Built-In Jump Starting. 6.1Ah, Replaces YTZ10, YTZ12, YTZ14, YTX9, YTX7A Yamaha, Honda, Kawasaki, Suzuki --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ph/products/17483206-lithium-4s-0-8a-tm-471-8-step-12-8v](https://www.desertcart.ph/products/17483206-lithium-4s-0-8a-tm-471-8-step-12-8v) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-07-09*