--- product_id: 196843494 title: "10,400mAh Waterproof Bike Light Battery - Now Higher Capacity - Works with Most CREE 8.4v LED Bike Lights, and All Our 8.4v Lights (Blaze, Helios and Stamina Models)" brand: "bright eyes" price: "289.87 DT" currency: TND in_stock: true reviews_count: 8 category: "Bright Eyes" url: https://www.desertcart.tn/products/196843494-10-400mah-waterproof-bike-light-battery-now-higher-capacity-works store_origin: TN region: Tunisia --- # Compatible with 8.4v CREE LED Lights IP65 Waterproof Rating 10,400mAh Ultra Capacity 10,400mAh Waterproof Bike Light Battery - Now Higher Capacity - Works with Most CREE 8.4v LED Bike Lights, and All Our 8.4v Lights (Blaze, Helios and Stamina Models) **Brand:** bright eyes **Price:** 289.87 DT **Availability:** ✅ In Stock ## Summary > 🔦 Illuminate your path, outlast the night, and never ride in the dark again! ## Quick Answers - **What is this?** 10,400mAh Waterproof Bike Light Battery - Now Higher Capacity - Works with Most CREE 8.4v LED Bike Lights, and All Our 8.4v Lights (Blaze, Helios and Stamina Models) by bright eyes - **How much does it cost?** 289.87 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/196843494-10-400mah-waterproof-bike-light-battery-now-higher-capacity-works) ## Best For - bright eyes enthusiasts ## Why This Product - Trusted bright eyes brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Proudly USA-Based Quality & Support:** Experience unmatched customer service and durable craftsmanship made in the USA. - • **Seamless Compatibility Across Models:** Works flawlessly with Bright Eyes Blaze, Helios, Stamina, and most 8.4v CREE LED bike lights. - • **Upgrade Your Night Rides with Confidence:** Replace older batteries and enjoy extended runtime without fear of sudden power loss. - • **Endurance That Outlasts Your Longest Rides:** Ride longer with a massive 10,400mAh battery capacity powering your bike light. - • **Weatherproof Reliability for Every Adventure:** IP65 waterproof design ensures your light stays bright rain or shine. ## Overview The Bright Eyes 10,400mAh Waterproof Bike Light Battery delivers ultra-high capacity power compatible with most 8.4v CREE LED bike lights, including Blaze, Helios, and Stamina models. Featuring an IP65 waterproof rating and robust construction, it ensures reliable, long-lasting illumination for night riders. Proudly made in the USA, this battery upgrade offers superior runtime and dependable performance for serious cyclists. ## Description Bright Eyes 10,400mAh Bike Light Battery - Now Higher Capacity - Works with CREE T6 LED 1200lm or 1800lm Bike Lights - 8.4v (10,400mAh BATTERY ONLY) Review: Superior service, and a quality product. - Bright Eyes has the best service you will ever find! I take long rides at night, so when the battery only lasted an hour, it wasn't long enough. I replaced it with this one. I've had it for 3 or 4 years, riding 3 or 4 nights a week, and it has never gone dead on a ride. Quality product that does what it is supposed to. The light has 3 settings with the top being 1600 lumens. I only use the bottom setting, because it is always plenty bright. Review: Solid construction, good capacity - Has the rated capacity, weatherproof, works as advertised and they seem to have fixed the problematic connector on the older revisions where the contacts would slowly corrode over time. It does seem to have a higher self-discharge than I would've liked, but I commute by bike on a near-daily basis, so it gets charged almost every night anyway. ## Features - Bright Eyes 10,400mAh Bike Light Battery: Ultra capacity for enduring long rides with enduring bright lights. - Upgrade Your Battery: Replaces Bright Eyes Stamina battery, Upgrades Helios, and Blaze models for longer runtime. - Versatile: Also compatible with most similar 8.4v external battery bike lights - Proudly USA-Based: Unlike our competition, we are proud to be a USA-based company, committed to delivering quality and reliable products while providing excellent support to our customers across the nation. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B083XKW1QS | | Auto Part Position | Rear | | Best Sellers Rank | #372,609 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #604 in Bike Headlights | | Brand | Bright Eyes | | Brand Name | Bright Eyes | | Color | 10,400mAh BATTERY ONLY | | Customer Reviews | 4.6 out of 5 stars 68 Reviews | | International Protection Rating | IP65 | | Light Output Maximum | 1800 lumens | | Manufacturer | Bright Eyes | | Manufacturer Part Number | 6123019 | | Material | Plastic | | Material Type | Plastic | | Mounting Type | Handlebar Mount | | Number of Items | 1 | | Number of Packs | 1 | | Number of settings | 1 | | Power Source | Battery Powered | | Unit Count | 1 Count | | Water Resistance Level | Waterproof | ## Images ![10,400mAh Waterproof Bike Light Battery - Now Higher Capacity - Works with Most CREE 8.4v LED Bike Lights, and All Our 8.4v Lights (Blaze, Helios and Stamina Models) - Image 1](https://m.media-amazon.com/images/I/41YLhbnp-DL.jpg) ![10,400mAh Waterproof Bike Light Battery - Now Higher Capacity - Works with Most CREE 8.4v LED Bike Lights, and All Our 8.4v Lights (Blaze, Helios and Stamina Models) - Image 2](https://m.media-amazon.com/images/I/91a3RYPxSgL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Superior service, and a quality product. *by R***. on May 8, 2025* Bright Eyes has the best service you will ever find! I take long rides at night, so when the battery only lasted an hour, it wasn't long enough. I replaced it with this one. I've had it for 3 or 4 years, riding 3 or 4 nights a week, and it has never gone dead on a ride. Quality product that does what it is supposed to. The light has 3 settings with the top being 1600 lumens. I only use the bottom setting, because it is always plenty bright. ### ⭐⭐⭐⭐⭐ Solid construction, good capacity *by V***K on October 28, 2021* Has the rated capacity, weatherproof, works as advertised and they seem to have fixed the problematic connector on the older revisions where the contacts would slowly corrode over time. It does seem to have a higher self-discharge than I would've liked, but I commute by bike on a near-daily basis, so it gets charged almost every night anyway. ### ⭐⭐⭐⭐⭐ Great value and quality *by D***T on November 6, 2024* Got this to replace an old bad battery pack for a 12 or 15 year old OG Magic Shine MTB light. Arrived as advertised, charged it up, and off I went. I've used it on two night rides and nightly with my headlamp when walking the dog. I've charged it once being conservative before the second night ride to ensure I didn't have it go dead but it had plenty of juice left. Really good battery for the price. --- ## 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.tn/products/196843494-10-400mah-waterproof-bike-light-battery-now-higher-capacity-works](https://www.desertcart.tn/products/196843494-10-400mah-waterproof-bike-light-battery-now-higher-capacity-works) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-31*