--- product_id: 101184677 title: "Weltool 16650 Protected Lithium Rechargeable Battery Build-in USB Port Adopt 2500mAh 3.7V Japanese UR16650ZTA core as Replacement for 2 CR123A" brand: "weltool" price: "€ 0.39" currency: EUR in_stock: false reviews_count: 8 url: https://www.desertcart.hr/products/101184677-weltool-16650-protected-lithium-rechargeable-battery-build-in-usb-port store_origin: HR region: Croatia --- # USB charging 2500mAh capacity Triple protection Weltool 16650 Protected Lithium Rechargeable Battery Build-in USB Port Adopt 2500mAh 3.7V Japanese UR16650ZTA core as Replacement for 2 CR123A **Brand:** weltool **Price:** € 0.39 **Availability:** ❌ Out of Stock ## Summary > 🔋 Power Meets Safety: Revolutionize Your Energy Game! ## Quick Answers - **What is this?** Weltool 16650 Protected Lithium Rechargeable Battery Build-in USB Port Adopt 2500mAh 3.7V Japanese UR16650ZTA core as Replacement for 2 CR123A by weltool - **How much does it cost?** € 0.39 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/101184677-weltool-16650-protected-lithium-rechargeable-battery-build-in-usb-port) ## Best For - weltool enthusiasts ## Why This Product - Trusted weltool brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Advanced protection circuits ensure safe operation in any environment. - • **Charge Anywhere:** Built-in USB port for convenient charging on-the-go. - • **Compact & Powerful:** High capacity with low internal resistance for maximum output. - • **Power Up Your Gear:** Replace 2 CR123A batteries with 1 x 16650 for enhanced efficiency. - • **Long-Lasting Performance:** Over 500 charge cycles for sustainable power solutions. ## Overview The Weltool 16650 Protected Lithium Rechargeable Battery is a high-capacity, 2500mAh battery designed to replace two CR123A batteries. It features a built-in USB charging port for easy recharging, advanced safety protections, and a robust design that ensures durability and longevity, making it ideal for various devices like flashlights and headlamps. ## Description Full description not available ## Features - Replacement for 2*CA123A - Some devices which use 2 CR123A batteries in series, (flashlight, headlamp, etc.) can use 1 x 16650 battery instead of 2 pcs of CR123A batteries. !!!This requires the device to have the correct input voltage range, specifically a Max voltage ≥6V and a Min voltage ≤3V!!! The UB16-25 has a capacity 53% greater than 2 pcs of CR123A batteries in series and an increase in runtime. The 16650 can be recharged after each use. - BUILD-IN USB CHARGING PORT WITH INDICATOR - UB16-25’s anode protection circuit includes the Micro-USB charging port, enabling direct charging using USB cables connected to a 5V adapter, a PC USB port (Output>=0.8A), or any portable power banks. The UB16-25 can also be charged from a compatible lithium battery charger. (Cable not included) - SAFE - The core is protected by a three layer system: Pressure Valve, Microspore Partition Plate, and PTC Negative Blocking protection! There are four protection circuits for: Overheating, Over-charging, Over-discharging, and Short-circuit protection! - Weltool UB series batteries revolutionize from the traditional li-ion battery protection circuit design, placing the protection circuit with the battery core at the anode (positive terminal), combined with the steel outer shell, effectively preventing the danger from impact, such as short circuiting, without increasing the diameter of the battery. - HIGH CAPACITY + LOW INTERNAL RESISTANCE OVER 500T CHARGING CYCLES - Incorporating a Japanese UR16650ZTA core, UB16-25 features low internal resistance, large capacity, and high discharging current. Size: 16.6±0.2mm (Dia.) , 70±0.2mm(Length). Fits Surefire: G2L,6PL,G2X,6PX,G2ZX, E2T-MV, Streamlight: PROTAC 2L, PROTAC HL, POLYTAC 90 RIGHT ANGLE LIGHT ## Product Details - **Number of Batteries:** 1 Lithium Ion batteries required. (included) - **Brand:** Weltool - **Battery Cell Composition:** Lithium Ion - **Battery Capacity:** 2500 Milliamp Hours - **Recommended Uses For Product:** Flashlights ## Images ![Weltool 16650 Protected Lithium Rechargeable Battery Build-in USB Port Adopt 2500mAh 3.7V Japanese UR16650ZTA core as Replacement for 2 CR123A - Image 1](https://m.media-amazon.com/images/I/51BgusKypbL.jpg) ![Weltool 16650 Protected Lithium Rechargeable Battery Build-in USB Port Adopt 2500mAh 3.7V Japanese UR16650ZTA core as Replacement for 2 CR123A - Image 2](https://m.media-amazon.com/images/I/61UHGI4UUuL.jpg) ![Weltool 16650 Protected Lithium Rechargeable Battery Build-in USB Port Adopt 2500mAh 3.7V Japanese UR16650ZTA core as Replacement for 2 CR123A - Image 3](https://m.media-amazon.com/images/I/71Mh3JJ78gL.jpg) ![Weltool 16650 Protected Lithium Rechargeable Battery Build-in USB Port Adopt 2500mAh 3.7V Japanese UR16650ZTA core as Replacement for 2 CR123A - Image 4](https://m.media-amazon.com/images/I/610MS3z272L.jpg) ![Weltool 16650 Protected Lithium Rechargeable Battery Build-in USB Port Adopt 2500mAh 3.7V Japanese UR16650ZTA core as Replacement for 2 CR123A - Image 5](https://m.media-amazon.com/images/I/611d5bR8LrL.jpg) ## Questions & Answers **Q: Will this work in atn ir850-b3?** A: Hi, if the IR850-b3 has the input voltage range of specifically a Max voltage ≥6V and a Min voltage ≤3V, that will work. But we can't find the information about that through the net, you may need to contact the distributor for this advice. :) **Q: Does this battery fits streamlight 88704 super tac ir ?** A: It should fit fine. That uses the CR123 batteries and this replaces two of those. I use this battery in the Streamlight ProTac 2L and it works great! The X series Streamlights can utilize the 18650 size battery (2mm larger around). The 18650 will not fit the standard ProTac 2L light but does fit the ProTac 2L-X. **Q: How long will this run a 6v dc motor for?** A: Not enough information in the question to answer. **Q: Can the micro-usb port be used for output as well? if so, will the output be 3.7v?** A: Hello, the micro-usb port only for input :) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great battery replacement for (2) CR123 batteries *by S***B on August 14, 2019* This is a great option for replacing 2 CR123 batteries in certain devices. Need to make sure the input voltage in the device can work on lower than 6v. This battery is 3.7 volts, fits the Streamlight ProTac 2L perfectly, and works very well. Really liking the fact that I can use it all I want and not worry about purchasing more expensive CR123's all the time. ### ⭐⭐⭐⭐⭐ Workinng great so far *by C***S on July 26, 2019* I bought it to replace the double CR123 batters in a 5.11 TPTL2 flash light. It fits perfectly and is working great. The battery was fully charged when it was received. ### ⭐⭐⭐ A reasonably good replacement for 2 CR123's *by R***R on July 31, 2019* It was easy to charge and seems to work well in my Surefire light. It is just slightly longer than two of the CR123's so the cap doesn't screw down quite as tight but works. --- ## 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/101184677-weltool-16650-protected-lithium-rechargeable-battery-build-in-usb-port](https://www.desertcart.hr/products/101184677-weltool-16650-protected-lithium-rechargeable-battery-build-in-usb-port) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-18*