--- product_id: 517542357 title: "12V 20Ah 30Ah 40Ah 50Ah Polymer Lithium Battery Waterproof Rechargeable Battery Pack with LCD Display for 12V Electric Motor Replacement Battery" brand: "willq" price: "$383.92" currency: USD in_stock: true url: https://www.desertcart.us/products/517542357-12v-20ah-30ah-40ah-50ah-polymer-lithium-battery-waterproof-rechargeable store_origin: US region: United States of America --- # 500+ charge cycles lifespan Waterproof ABS shell Up to 50Ah capacity 12V 20Ah 30Ah 40Ah 50Ah Polymer Lithium Battery Waterproof Rechargeable Battery Pack with LCD Display for 12V Electric Motor Replacement Battery **Brand:** willq **Price:** $383.92 **Availability:** ✅ In Stock ## Summary > ⚡ Power your hustle with confidence and style! ## Quick Answers - **What is this?** 12V 20Ah 30Ah 40Ah 50Ah Polymer Lithium Battery Waterproof Rechargeable Battery Pack with LCD Display for 12V Electric Motor Replacement Battery by willq - **How much does it cost?** $383.92 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/517542357-12v-20ah-30ah-40ah-50ah-polymer-lithium-battery-waterproof-rechargeable) ## Best For - willq enthusiasts ## Why This Product - Trusted willq brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Rugged ABS casing ensures water and impact resistance, perfect for on-the-go professionals. - • **Power That Lasts:** High-capacity 12V polymer lithium battery available up to 50Ah for extended runtime. - • **Smart Safety First:** Advanced BMS protects against overcharge, discharge, short-circuit, and temperature risks. - • **Stay Informed Instantly:** Integrated LCD display keeps you updated on battery status anytime, avoiding unexpected downtime. - • **Fast & Efficient Charging:** Comes with a 12.6V 2A charger that fully powers your battery in just 4 hours. ## Overview This 12V polymer lithium rechargeable battery pack offers up to 50Ah capacity with a robust 500+ cycle lifespan. Featuring a waterproof ABS shell and smart BMS protection, it ensures safety and durability for electric motor replacements. The built-in LCD display provides real-time power status, while the included fast charger fully recharges the battery in 4 hours, making it an eco-friendly, lightweight, and reliable upgrade over traditional lead-acid batteries. ## Description Battery is equipped with a switch, which can be turned off in time without using the battery to avoid wasting power. The ABS materials shell will protect the battery from the damages of fallen or crashes, also water and moisture.Production process quality inspection and monitoring the use of computers to ensure superior battery performance.The advanced lithium-ion technology offers the highest possible charging cycles and cannot be affected by the so-called memory effect.Equipped with a smart BMS, which protects battery from over-charge, over-discharge, over-voltage, over-current, short-circuit and temperature protection to ensure the safety.Capacity: 20Ah,30Ah,40Ah,50AhInput voltage: 12.6VSize: 197*115*75mmInput current: 350ma (standard) / 1000maOutput voltage: 12.6-10.8VOutput current:1-10A(Customized)Charger input: 100-220V ACCharger output: DC 12VProduct life: Cycle charge and discharge times ≥500 times.Package include:1 X 12V DC Li-ion Battery1 X 12.6V 2A AC adapterWarm tips:Make sure you buy the suitable battery or motor kits, please check the size and the model carefully before you buy it.When the battery capacity is less than 20%, please charge in time to ensure the battery life. Need to open power switch when Charger. otherwise can't full charge. ## Features - A grade original cell.with the characteristic of long cycle life, light battery weight, high safety performance, green environmental protection, It's a much better battery than a lead-acid battery. - Equipped with BMS protection board. It has to undertake a more accurate calculation of electricity to ensure the service life of the battery, also provides safety while the battery running. - With on/off button, help you save more power. LCD power Indicator, inform you battery power in anytime.The ABS shell will protect the battery from the damages of fallen or crashes, also water and moisture. - Comes with a 12.6V 2A charger, it can be fully charge in 4 hours. Built-in high quality brand lithium cell, battery cycle life up to 500 times, life expectancy of our electric bike battery up to 5 years. - Battery Package contains 1 * 12V polyner lithium battery, 1 * 12.6V 2A Battery charger. Please fully charge before you first use. If you have any questions please contact us for help. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BYD69VBQ | | Antenna Location | Protection | | Battery Cell Type | Lithium Ion | | Best Sellers Rank | #171,341 in Electronics ( See Top 100 in Electronics ) #1,150 in Rechargeable Household Batteries | | Brand | WILLQ | | Item Dimensions | 19.7 x 11.5 x 7.5 centimeters | | Item Weight | 1.5 Kilograms | | Manufacturer | WILLQ | | Reusability | Rechargeable | | Unit Count | 1.00 Count | | Voltage | 12 Volts | ## Product Details - **Battery cell composition:** Lithium Ion - **Brand:** WILLQ - **Recommended uses for product:** Protection - **Unit count:** 1.00 Count - **Voltage:** 12 Volts ## Images ![12V 20Ah 30Ah 40Ah 50Ah Polymer Lithium Battery Waterproof Rechargeable Battery Pack with LCD Display for 12V Electric Motor Replacement Battery - Image 1](https://m.media-amazon.com/images/I/51lRnqJx3mL.jpg) ![12V 20Ah 30Ah 40Ah 50Ah Polymer Lithium Battery Waterproof Rechargeable Battery Pack with LCD Display for 12V Electric Motor Replacement Battery - Image 2](https://m.media-amazon.com/images/I/51gb-lKWzQL.jpg) ![12V 20Ah 30Ah 40Ah 50Ah Polymer Lithium Battery Waterproof Rechargeable Battery Pack with LCD Display for 12V Electric Motor Replacement Battery - Image 3](https://m.media-amazon.com/images/I/51wdOaHjMvL.jpg) ![12V 20Ah 30Ah 40Ah 50Ah Polymer Lithium Battery Waterproof Rechargeable Battery Pack with LCD Display for 12V Electric Motor Replacement Battery - Image 4](https://m.media-amazon.com/images/I/51tXup6hZPL.jpg) ![12V 20Ah 30Ah 40Ah 50Ah Polymer Lithium Battery Waterproof Rechargeable Battery Pack with LCD Display for 12V Electric Motor Replacement Battery - Image 5](https://m.media-amazon.com/images/I/51+C3pVXdmL.jpg) ## Available Options This product comes in different **Color, Size** options. --- ## 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.us/products/517542357-12v-20ah-30ah-40ah-50ah-polymer-lithium-battery-waterproof-rechargeable](https://www.desertcart.us/products/517542357-12v-20ah-30ah-40ah-50ah-polymer-lithium-battery-waterproof-rechargeable) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-16*