--- product_id: 11332697 title: "Optimate 1 STD, TM-85, 3-Step 12V 0.9A Battery Charger-maintainer" brand: "tecmate" price: "₹ 1309" currency: INR in_stock: false reviews_count: 13 url: https://www.desertcart.in/products/11332697-optimate-1-std-tm-85-3-step-12v-0-9a store_origin: IN region: India --- # 0.9A tapered charging amps Supports 12V lead-acid, AGM & GEL batteries Operates down to -20°C (-4°F) Optimate 1 STD, TM-85, 3-Step 12V 0.9A Battery Charger-maintainer **Brand:** tecmate **Price:** ₹ 1309 **Availability:** ❌ Out of Stock ## Summary > 🔋 Keep your batteries charged, your gear ready, and never miss a ride! ## Quick Answers - **What is this?** Optimate 1 STD, TM-85, 3-Step 12V 0.9A Battery Charger-maintainer by tecmate - **How much does it cost?** ₹ 1309 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/11332697-optimate-1-std-tm-85-3-step-12v-0-9a) ## Best For - tecmate enthusiasts ## Why This Product - Trusted tecmate brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safe & Reliable:** No overcharge, spark suppression, and thermal protection for peace of mind - • **3-Step Smart Charging:** From low volt start to maintenance—battery care that thinks ahead - • **All Battery Types Covered:** Seamlessly charges STD, AGM & GEL batteries from 2 to 50Ah - • **Weatherproof & Long Reach:** 12ft charge lead with SAE connector plus weatherproof clips for versatile use - • **Plug-and-Forget Maintenance:** 24/7 safe battery care that keeps your ride ready, even in storage ## Overview The Optimate 1 STD TM-85 is a compact, 3-step 12V 0.9A battery charger and maintainer designed for all types of 12V lead-acid batteries including wet cell, AGM, and GEL. It features low voltage start, tapered charging amps, and automatic maintenance mode to ensure safe, long-term battery health without overcharging. Weatherproof leads and a 12ft cable make it ideal for indoor use and seasonal vehicle storage, operating reliably down to -20°C. Backed by a 3-year warranty, it’s a trusted solution for professionals and enthusiasts who demand dependable battery care. ## Description Program steps - STEP1: Low Volt Start (4V). STEP2: Controlled CHARGE. STEP3: OptiMate Maintenance. SAFE: No risk of overcharging. Totally safe for vehicle electronics. Sparks suppressed. Safe for long-term battery maintenance. Thermally protected. Automatic shut-down if short-circuited or battery disconnected. 3-year limited replacement warranty. Review: GREAT PRODUCT! - Replaced one of the trickle charges I happened to have on my zero turn mower. My fault...drove off after forgetting to disconnect it! These work great for anyone considering one. They keep my batteries maximized and they last much longer in doing so! Review: Very happy - Very happy. I actually bought this product as a replacement from a recent storm. Love it. Have been using about a year should save my $ motorcycle battery. ## Features - Cost effective 12V battery maintenance!24/7 Safe long term battery care – Maintain any type 12 volt lead-acid battery without overcharging, filler cap / wet cell, sealed AGM (MF) or GEL; ideal for vehicles that are seldom or seasonally used, or in storage. - SAVE: Low Volt Start of 8V; CHARGING AMPS: 0.9A (tapered current) - Model TM-85 IDEAL FOR : STD, AGM & GEL 12V batteries from 2 – 50Ah - USE: Indoor (lowest temperature: -4°F / -20°C); STYLE: Plug-in case (vented), with 12ft / 370cm charge lead ending in SAE connector; weatherproof battery lead & small battery clip set included. - INPUT: North America 110-120V 50-60Hz ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0041PJ6VE | | Brand | Tecmate | | Current Rating | 0.9 Amps | | Customer Reviews | 4.4 4.4 out of 5 stars (35) | | Global Trade Identification Number | 05425006142250 | | Input Voltage | 120 Volts | | Item Weight | 1.9 Pounds | | Manufacturer | TecMate | | Mfr Part Number | TM-85 | | Model Number | TM-85 | | Warranty Description | 3 Years | ## Product Details - **Brand:** Tecmate - **Current Rating:** 0.9 Amps - **Global Trade Identification Number:** 05425006142250 - **Input Voltage:** 120 Volts - **Item Weight:** 1.9 Pounds ## Images ![Optimate 1 STD, TM-85, 3-Step 12V 0.9A Battery Charger-maintainer - Image 1](https://m.media-amazon.com/images/I/71ctRVJ7pfL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ GREAT PRODUCT! *by S***S on January 30, 2020* Replaced one of the trickle charges I happened to have on my zero turn mower. My fault...drove off after forgetting to disconnect it! These work great for anyone considering one. They keep my batteries maximized and they last much longer in doing so! ### ⭐⭐⭐⭐⭐ Very happy *by D***L on March 31, 2013* Very happy. I actually bought this product as a replacement from a recent storm. Love it. Have been using about a year should save my $ motorcycle battery. ### ⭐⭐⭐⭐⭐ Perfect *by T***N on June 1, 2013* Works as should be and maintains my bike just right you won't regret getting it. I got 2 unites and the optimate6 all are more than great --- ## 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.in/products/11332697-optimate-1-std-tm-85-3-step-12v-0-9a](https://www.desertcart.in/products/11332697-optimate-1-std-tm-85-3-step-12v-0-9a) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-05-10*