--- product_id: 66142569 title: "MINCHEN 6pcs 18650 Big Plastic Sleeves, Big Plastic Tube Holder for 18650 Battery, Battery Plastic Holder Converter for 18650 Battery to 26650" price: "€ 0.26" currency: EUR in_stock: false reviews_count: 5 url: https://www.desertcart.hr/products/66142569-minchen-6pcs-18650-big-plastic-sleeves-big-plastic-tube-holder store_origin: HR region: Croatia --- # Eco-friendly plastic 25.5mm outer diameter 18650 to 26650 converter MINCHEN 6pcs 18650 Big Plastic Sleeves, Big Plastic Tube Holder for 18650 Battery, Battery Plastic Holder Converter for 18650 Battery to 26650 **Price:** € 0.26 **Availability:** ❌ Out of Stock ## Summary > 🔧 Power Up Your Gear with Style! ## Quick Answers - **What is this?** MINCHEN 6pcs 18650 Big Plastic Sleeves, Big Plastic Tube Holder for 18650 Battery, Battery Plastic Holder Converter for 18650 Battery to 26650 - **How much does it cost?** € 0.26 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/66142569-minchen-6pcs-18650-big-plastic-sleeves-big-plastic-tube-holder) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pack of 6:** Stock up with a convenient pack of six sleeves for all your battery needs. - • **Perfect Fit:** Designed with a 25.5mm outer diameter for a snug fit in your favorite flashlights. - • **Durable Design:** Built to withstand the rigors of everyday use while maintaining performance. - • **Eco-Conscious Choice:** Crafted from environmentally friendly plastic for guilt-free usage. - • **Transform Your Power:** Easily convert 18650 batteries to fit 26650 devices. ## Overview The 6pcs 18650 Big Plastic Sleeves are designed to convert standard 18650 batteries to fit 26650 devices, featuring a robust 25.5mm outer diameter. Made from eco-friendly plastic, this pack of six ensures you have the right fit for your flashlights while promoting sustainability. ## Description 18650 Big Plastic Sleeves - The Big Plastic Tube is use for increasing the diameter of 18650 battery to 25.5mm so that 18650 battery can be better fit flashlights that powered by 26650. - Big Plastic Tube Dimension: 25.5mm (Outer Dia.) x 61mm (H) - Material: Environmental protection plastic material - Please note the Big Plastic Sleeve (Outer Dia.25.5mm) is bigger than normal 18650 plastic sleeve (Outer Dia. 21.5mm), the big sleeve is use for increasing 18650 battery a lot to be better fit flashlights that also can be powered by 26650. - Package includes: - 6 x Big Plastic Sleeves for 18650(no batteries included) Review: 18650 Lithium Ion Battery Sleve - I use them to house 18650 batteries in place of those 3-cell AAA battery holders commonly found in LED flashlights. Not all flashlights are the right length, so check carefully. Review: Internal diameter is too large - Doesn't work for safe use of 18650 battery. Checked all 6 tubes. Same as others have stated so it's probably a poor design. Returning. ## Features - 18650 Battery Big Plastic Sleeve - Use for increasing the diameter of 18650 battery to be better fit flashlights that powered by 26650 or 18650 - Plastic Tube Dimension: 25.5mm (Outer Dia.) x 61mm (H) - Material: Environmental protection plastic material - Please note the Big Plastic Sleeve (Outer Dia.25.5mm) is bigger than normal 18650 plastic sleeve (Outer Dia. 21.5mm) ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | MINCHEN | | Part Number | BSleeve-6 | | Country of Origin | China | | Material | Plastic | | Pattern | Pack of 6 | | Item Package Quantity | 6 | ## Images ![MINCHEN 6pcs 18650 Big Plastic Sleeves, Big Plastic Tube Holder for 18650 Battery, Battery Plastic Holder Converter for 18650 Battery to 26650 - Image 1](https://m.media-amazon.com/images/I/41FM9rMH0RL.jpg) ![MINCHEN 6pcs 18650 Big Plastic Sleeves, Big Plastic Tube Holder for 18650 Battery, Battery Plastic Holder Converter for 18650 Battery to 26650 - Image 2](https://m.media-amazon.com/images/I/51eK-LSfohL.jpg) ![MINCHEN 6pcs 18650 Big Plastic Sleeves, Big Plastic Tube Holder for 18650 Battery, Battery Plastic Holder Converter for 18650 Battery to 26650 - Image 3](https://m.media-amazon.com/images/I/51if1wRLohL.jpg) ![MINCHEN 6pcs 18650 Big Plastic Sleeves, Big Plastic Tube Holder for 18650 Battery, Battery Plastic Holder Converter for 18650 Battery to 26650 - Image 4](https://m.media-amazon.com/images/I/31a7gdqbhdL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ 18650 Lithium Ion Battery Sleve *by B***D on February 21, 2019* I use them to house 18650 batteries in place of those 3-cell AAA battery holders commonly found in LED flashlights. Not all flashlights are the right length, so check carefully. ### ⭐ Internal diameter is too large *by D***G on June 7, 2024* Doesn't work for safe use of 18650 battery. Checked all 6 tubes. Same as others have stated so it's probably a poor design. Returning. ### ⭐⭐ Don't use these with 18650 cells! *by (***) on June 8, 2023* Item is described as "Converter for 18650 Battery to 26650". Outer sleeve diameter is OK for 26650 cell size... However inner spacers are WAY too short to correctly center an 18650 cell. This sleeve will allow an 18650 cell to slide all over the place and likely cause a short and/or damage to your device. (The inner spacers are *almost* short enough to accept a 21700 cell. Unfortunately if you try this you will likely damage the shrink-wrap insulation on the cell...) On the plus side, seller will be providing a refund with no need to return the items. So a few stars given for decent customer service. --- ## 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/66142569-minchen-6pcs-18650-big-plastic-sleeves-big-plastic-tube-holder](https://www.desertcart.hr/products/66142569-minchen-6pcs-18650-big-plastic-sleeves-big-plastic-tube-holder) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-12*