---
product_id: 24850306
title: "Bright Eyes The Best Bike Light Battery - Now Higher Capacity - Works with CREE T6 LED 1200lm Bike Lights - 8.4v"
brand: "bright eyes"
price: "$54.95"
currency: USD
in_stock: true
reviews_count: 8
category: "Bright Eyes"
url: https://www.desertcart.us/products/24850306-bright-eyes-the-best-bike-light-battery-now-higher-capacity
store_origin: US
region: United States of America
---

# 1200lm Brightness 6400mAh High Capacity Proudly USA-Based Bright Eyes The Best Bike Light Battery - Now Higher Capacity - Works with CREE T6 LED 1200lm Bike Lights - 8.4v

**Brand:** bright eyes
**Price:** $54.95
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Illuminate your ride, own the night!

## Quick Answers

- **What is this?** Bright Eyes The Best Bike Light Battery - Now Higher Capacity - Works with CREE T6 LED 1200lm Bike Lights - 8.4v by bright eyes
- **How much does it cost?** $54.95 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/24850306-bright-eyes-the-best-bike-light-battery-now-higher-capacity)

## 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

- • **Seamless Compatibility:** Fits Bright Eyes Stamina, Helios, Blaze, and most CREE T6 LED 1200lm bike lights for effortless replacement.
- • **Support That Has Your Back:** USA-based company offering hassle-free 1-year warranty and dedicated customer service.
- • **Built Tough for the Outdoors:** IPX5 water resistance and durable nylon/polypropylene construction keep you riding rain or shine.
- • **Lightweight & Ready to Mount:** Compact 0.55 lb battery designed for easy handlebar mounting without weighing you down.
- • **Power Through Your Night Rides:** 6400mAh high-capacity battery delivers up to 4 hours of bright, reliable light on high mode.

## Overview

The Bright Eyes Best Bike Light Battery is a high-capacity 6400mAh 8.4V rechargeable lithium-ion pack designed for CREE T6 LED 1200lm bike lights. Compatible with multiple Bright Eyes models and similar lights, it offers up to 4 hours of bright illumination, IPX5 water resistance, and a lightweight design. Proudly made and supported in the USA, it comes with a no-hassle 1-year warranty, making it the reliable choice for serious night riders.

## Description

Wall Charger NOT Included.USED FOR BRIGHT EYES BIKE LIGHTS AND OTHER BIKE LIGHTS using the 8.4V 6400mAH Rechargeable lithium ion Replacement Spare Battery pack Set for CREE T6 LED 1200lm bike lights.ONE YEAR WARRANTY....NO QUESTIONS ASKED....NO HASSLE!!!

Review: Good product. - Works perfectly with my light and charger. Lasts about 4 hours on high.
Review: Replaced my dead Gloworm battery - The battery for my Gloworm light died and the replacement was a ton of money. This one seems to work well. I don’t do a lot of night riding so it’s perfect for me. Can’t comment on how long it lasts because I haven’t used it enough.

## Features

- High Capacity: 6400mAh 8.4v bike light battery pack.
- Replacement: Compatible with Bright Eyes Stamina, Helios or Blaze models. Also fits most other similar CREE T6 LED 1200lm 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 | B014EJX9G4 |
| Auto Part Position | Rear |
| Best Sellers Rank | #107,795 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #82 in Bike Lighting Parts & Accessories |
| Brand | Bright Eyes |
| Brand Name | Bright Eyes |
| Brightness | 1200 lumen |
| Color | 6400mAh Battery Only |
| Customer Reviews | 4.4 out of 5 stars 394 Reviews |
| International Protection Rating | IPX5 |
| Item Weight | 0.55 Pounds |
| Manufacturer | Bright Eyes |
| Material | Nylon, Polypropylene |
| Material Type | Nylon, Polypropylene |
| Mounting Type | Handlebar Mount |
| Number of settings | 1 |
| Power Source | Battery Powered |
| UPC | 784672866675 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Color:** 6400mAh Battery Only
- **Brand:** Bright Eyes
- **Material:** Nylon, Polypropylene
- **Power Source:** Battery Powered
- **Water Resistance Level:** Water Resistant
- **Item Weight:** 0.55 Pounds
- **Mounting Type:** Handlebar Mount
- **Number of settings:** 1
- **Brightness:** 1200 lumen
- **Auto Part Position:** Rear

## Images

![Bright Eyes The Best Bike Light Battery - Now Higher Capacity - Works with CREE T6 LED 1200lm Bike Lights - 8.4v - Image 1](https://m.media-amazon.com/images/I/71ZRa6UUlkL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: I have a different manufacturer led bike light (serfas true t1000).  can i use this battery as a backup battery?**
A: Check the connection type and voltage rating.

**Q: What brand and model of battery is in the 6400mah pack?  if it is really 6400mah, you should publish this data.**
A: His question is legit and you did not answer it honestly.  You were asked who makes your battery.  Lets be more specific.  Who makes the 18650 cells?   Your do not make 18650 cells.  So answer the question by: BAK, Samsung, LG, Panasonic, or no name generic.  There are many 18650 cells made in China and India that are no name generic that are junk and come no where near a capacity of 6400 mah (x 4 cells) and if that is what you are using, you should not publish that.  BAK is a Chinese 18650 battery manufacture that is not up to the quality of the others mentioned and again should be clarified.

**Q: I bought this battery but it flashes green & red when I plug it into the charger (and doesn't charge). Is it my charger or the battery at fault?**
A: I've also seen the flashing LEDs when dirt and/or corrosion needs to be cleaned off the terminals. I've found this particularly irritating for the battery pack terminals made out of garbage-cheap alloys. Any corrosion and it can screw-up the monitoring processor in the charger.

**Q: Could someone tell me the power output of the charger?**
A: Good question. In this case we are talking about the 1200 lumen light from Brightteyes so power of the light is given. I believe what is being asked here is what are the power and voltage rating of the wall adapter that comes with this offer.  This information must be stamped on the label or silkscreen print on the adapters enclosure.   I second your question. If anybody can read this from the label. Please answer.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product.
*by R***E on December 16, 2025*

Works perfectly with my light and charger. Lasts about 4 hours on high.

### ⭐⭐⭐⭐⭐ Replaced my dead Gloworm battery
*by D***G on October 6, 2025*

The battery for my Gloworm light died and the replacement was a ton of money. This one seems to work well. I don’t do a lot of night riding so it’s perfect for me. Can’t comment on how long it lasts because I haven’t used it enough.

### ⭐⭐⭐⭐⭐ Big runtime and very good construction!
*by D***B on December 10, 2025*

This pack was a step above the rest in both the extra capacity as mentioned in the product description and the general construction of it. The case it is wrapped in is burly and well-stitched, with nice finishing touches and the Velcro is so strong, it is actually a little difficult to undo! Excellent replacement, and I'm not compelled to look any further.

## Frequently Bought Together

- Bright Eyes The Best Bike Light Battery - Now Higher Capacity - Works with CREE T6 LED 1200lm Bike Lights - 8.4v
- BRIGHT EYES Helios Fully Waterproof 1600 Lumen Rechargeable Mountain, Road Bike, MX Headlight, 6400mAh External Battery (Now 4+ Hours on Bright Beam) - Included: Free Diffuser Lens and Free Taillight
- BRIGHT EYES 1800 Lumen Bicycle Light Set - The Stamina - Super Bright Headlight w/Quad Cree Technology and Light Weight Military Grade Nylon Shell - Free USB Rechargeable Taillight

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-11*