--- product_id: 345509118 title: "Galaxy S20 Ultra Battery, (Upgraded) MAXBEAR 5500mAh 3.85V Li-Polymer Replacement Battery EB-BG988ABY for Samsung Galaxy S20 Ultra 5G SM-G988 G988B with Repair Tool Kit" brand: "maxbear" price: "$41.92" currency: USD in_stock: true reviews_count: 9 category: "Maxbear" url: https://www.desertcart.us/products/345509118-galaxy-s20-ultra-battery-upgraded-maxbear-5500mah-3-85v-li store_origin: US region: United States of America --- # 3.85V stable voltage 5500mAh powerhouse Built-in microchip protection Galaxy S20 Ultra Battery, (Upgraded) MAXBEAR 5500mAh 3.85V Li-Polymer Replacement Battery EB-BG988ABY for Samsung Galaxy S20 Ultra 5G SM-G988 G988B with Repair Tool Kit **Brand:** maxbear **Price:** $41.92 **Availability:** ✅ In Stock ## Summary > 🔋 Power up your Galaxy S20 Ultra — never miss a moment with MAXBEAR’s ultimate battery upgrade! ## Quick Answers - **What is this?** Galaxy S20 Ultra Battery, (Upgraded) MAXBEAR 5500mAh 3.85V Li-Polymer Replacement Battery EB-BG988ABY for Samsung Galaxy S20 Ultra 5G SM-G988 G988B with Repair Tool Kit by maxbear - **How much does it cost?** $41.92 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/345509118-galaxy-s20-ultra-battery-upgraded-maxbear-5500mah-3-85v-li) ## Best For - maxbear enthusiasts ## Why This Product - Trusted maxbear brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Safety Tech:** Integrated microchip prevents overcharging, overheating, and over-discharging for peace of mind. - • **Endless Power Boost:** Massive 5500mAh capacity keeps your Galaxy S20 Ultra running longer than ever. - • **Tailored Compatibility:** Specifically engineered for Samsung Galaxy S20 Ultra 5G (SM-G988/G988B) — no guesswork, just perfect fit. - • **Confidence with Warranty:** 12-month warranty ensures your investment is protected, backed by responsive customer support. - • **Certified Quality Assurance:** CE, ROHS, and UL certifications guarantee premium-grade battery performance and durability. ## Overview The MAXBEAR 5500mAh Li-Polymer replacement battery is a high-capacity, premium-grade power solution designed exclusively for the Samsung Galaxy S20 Ultra 5G (SM-G988/G988B). Featuring advanced microchip protection against overcharging and overheating, this CE, ROHS, and UL certified battery ensures long-lasting, safe performance. Included with a 12-month warranty and repair toolkit, it revitalizes your phone’s battery life, making it feel brand new again. ## Description Product Specifications - Battery Capacity: 5,500 mAh - Battery Type: Lithium Ion Polymern - Voltage Output: 3.85 V - Watt-hour: 21.17Wh COMPATIBLE MODELS -Samsung Galaxy S20 Ultra 5G -SM-G988 -SM-G988B Package Includes: -Replacement Battery for Galaxy S20 Ultra x 1 pcs. -12 Month Warranty Internal batteries, (IE: Phone replacement batteries), require technical knowledge to replace, and may be hazardous and/or cause damage or future damage to phone if done incorrectly. Do not expose to extreme temperatures, below 0F - above 140F. Never charge battery for longer than 24 hours. DISCLAIMER: (Must read and acknowledge before buying) Opening up your device to perform a modification or repair may void your warranty if applicable. Review: IT DRAINS WAY TO FAST - I CHARGED IT OVERNIGHT AND IT SHOWED 100% MADE 2 PHONE CALLS FOR 15 MINUTES TOTAL AT IT DRAINED TO 83% AFTER SITTING ON MY DESK FOR ABOUT 3 HOURS ON STAND BY IT DRAINED TO 73%. I ASK FOR A REPLACEMENT AND WAS GIVEN NO PROBLEMS 'ILL HAVE IT BY MONDAY. DON'T GET ME WRONG IT'S NOT THE COMPANY THAT SOLD IT TO ME IT'S JUST A FAULTY BATTERY. BUT I WILL SAY THERE CUSTOMER SERVICE IS GREAT NO PROBLEMS WHAT SO EVER. AT THIS TIME I'M STILL GIVING THEM 5 STARS. I'LL POST ANOTHER REVIEW AFTER I CHARGE THE NEW ONE. ON MONDAY. I RECEIVED MY REPLACEMENT IN 2 DAYS AND CHARGED IT OVER NIGHT AND IT WORKS GREAT. Review: NIce kit - got the battery replaced and phone and battery are charged. ## Features - 🌹【Brand New Battery 】: MAXBEAR Replacement battery for Samsung Galaxy S20 Ultra , bring life back to your phone with a replacement battery. Make your phone acting like a brand new - 🌹【Top Quality Battery】: Made of grade A premium battery cells, long lasting and durable. Build-in microchip to prevent over-charging, over-discharging and over-heating, which will help lengthen battery life. STRICT QUALITY-CONTROL. CE, ROHS and UL certified. Long battery life cycle - 🌹【Compatible Models】: Compatible with Samsung Galaxy S20 Ultra Only, Model: S20 Ultra 5G SM-G988 G988B [Note: Not for Samsung Galaxy S20 , S20 Plus or other Galaxy model.] - 🌹【Spare Battery Specs】: Galaxy S20 Ultra Replacement battery has a capacity of 5500mAh. The Battery type is Lithium Ion, the Voltage is 3.85V. - 🌹【Customer Satisfaction】: 12 Month Warranty for customer satisfaction guaranteed, Pls contact us if you have any questions. Customer satisfaction is our highest priority. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09994B4RT | | Batteries | 1 Lithium Polymer batteries required. | | Best Sellers Rank | #18,397 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #33 in Cell Phone Replacement Batteries | | Color | Galaxy S20 Ultra Battery | | Customer Reviews | 4.0 4.0 out of 5 stars (748) | | Date First Available | January 4, 2019 | | Is Discontinued By Manufacturer | No | | Item Weight | 5 ounces | | Item model number | YYS20U | | Manufacturer | MAXBEAR | | Other display features | Wireless | | Package Dimensions | 6.54 x 3.35 x 1.02 inches | ## Product Details - **Battery Capacity:** 5500 Milliamp Hours - **Battery Cell Composition:** Lithium Polymer - **Brand:** MAXBEAR - **Number of Batteries:** 1 Lithium Polymer batteries required. - **Recommended Uses For Product:** Phone ## Images ![Galaxy S20 Ultra Battery, (Upgraded) MAXBEAR 5500mAh 3.85V Li-Polymer Replacement Battery EB-BG988ABY for Samsung Galaxy S20 Ultra 5G SM-G988 G988B with Repair Tool Kit - Image 1](https://m.media-amazon.com/images/I/71cogH3QAoL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Hola, esta bateria sirve para samsung note 20 ultra? does this battery Fits to samsung note 20 ultra?** A: si funciona **Q: does it compatible with SM-N920 C as well?** A: Thanks for your question. it not compatible with SM-N920 **Q: Is this compatible with sm-g988u? i do not see this model number of the s20 ultra listed** A: This looks like the one I purchased for my s20 ultra. I had no issue with the new battery. ## Customer Reviews ### ⭐⭐⭐⭐⭐ IT DRAINS WAY TO FAST *by S***E on April 11, 2019* I CHARGED IT OVERNIGHT AND IT SHOWED 100% MADE 2 PHONE CALLS FOR 15 MINUTES TOTAL AT IT DRAINED TO 83% AFTER SITTING ON MY DESK FOR ABOUT 3 HOURS ON STAND BY IT DRAINED TO 73%. I ASK FOR A REPLACEMENT AND WAS GIVEN NO PROBLEMS 'ILL HAVE IT BY MONDAY. DON'T GET ME WRONG IT'S NOT THE COMPANY THAT SOLD IT TO ME IT'S JUST A FAULTY BATTERY. BUT I WILL SAY THERE CUSTOMER SERVICE IS GREAT NO PROBLEMS WHAT SO EVER. AT THIS TIME I'M STILL GIVING THEM 5 STARS. I'LL POST ANOTHER REVIEW AFTER I CHARGE THE NEW ONE. ON MONDAY. I RECEIVED MY REPLACEMENT IN 2 DAYS AND CHARGED IT OVER NIGHT AND IT WORKS GREAT. ### ⭐⭐⭐⭐⭐ NIce kit *by B***E on December 23, 2025* got the battery replaced and phone and battery are charged. ### ⭐ Garbage, completely unusable batteries. *by A***N on August 9, 2022* Bought one "MAXBEAR (Upgraded) 3800mAh 3.85V Li-Polymer Battery" for my Galaxy S7. Came w/ 60% power. Used it until phone turned off. Plugged in to wall outlet w/ my original Samsung charger. Needed FOUR FULL DAYS to fully charge. AND I had to keep unplugging it and plugging it back in as it kept stopping the charge. Used phone until battery down to 5%, then it would not accept a charge at all. Tried different chargers, different outlets, but battery was dead and would no longer recharge. I traded it in for another of the same battery. Started off the same, also needed four days to charge first time, then on second charge attempt overnight, it didn't increase charge percentage at all (although the light indicated it was charging.) Unplugged from the charger and plugged in again, then after four hours the charge increased 10%. After the first battery wouldn't recharge, I emailed the seller directly with a simple outline of my problem asking for specific input and was sent an exact copy of the text used on their seller page w/ a general description of how to charge a battery. So, a typical garbage Chinese knockoff product and common Chinese dealer selling to an American market who won't bother using a translator to thoughtfully respond to their customers' genuine concerns. ## Frequently Bought Together - MAXBEAR Galaxy S20 Ultra Battery, (Upgraded) 5500mAh 3.85V Li-Polymer Replacement Battery EB-BG988ABY for Samsung Galaxy S20 Ultra 5G SM-G988 G988B with Repair Tool Kit - MMOBIEL Dock Connector Compatible with Samsung Galaxy S20 Ultra 2020 - Charging Port - Headphone Port/Microphone Replacement - Type C - Incl. Screwdrivers - ubrokeifixit Galaxy S20 Ultra Rear Back Glass Cover Replacement for Samsung Galaxy S20 Ultra 6.9" LTE G988B/DS,S20 Ultra 5G SM-G988(NOT for S20+ 6.7",NOT for S20 6.2") (Black/Camera Lens) --- ## 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/345509118-galaxy-s20-ultra-battery-upgraded-maxbear-5500mah-3-85v-li](https://www.desertcart.us/products/345509118-galaxy-s20-ultra-battery-upgraded-maxbear-5500mah-3-85v-li) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-04-26*