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Description
Eunorau | Flash Extra Battery 52V21Ah (2nd) | 52V17Ah (3rd) | Both | 52V-21AH-HYFX-D-RA4 - Second 21AH+Third 17AHEunorau Flash Extra Battery 52V21Ah (2nd) 52V17Ah (3rd) Both Overview Two reliable lithium ion battery options designed for the Eunorau Flash: a higher capacity 52V 21Ah down tube pack using HYFX D LG3500 cells and a lighter 52V 17Ah Hailong top tube pack. Both include a 4A charger and an integrated battery management system (BMS) for safer, balanced charging and riding. Benefits Extend your ride higher capacity means fewer stops to recharge and
Eunorau | Flash Extra Battery 52V21Ah (2nd) | 52V17Ah (3rd) | Both
Overview
Two reliable lithium-ion battery options designed for the Eunorau Flash: a higher-capacity 52V 21Ah down-tube pack using HYFX-D LG3500 cells and a lighter 52V 17Ah Hailong top-tube pack. Both include a 4A charger and an integrated battery management system (BMS) for safer, balanced charging and riding.
Benefits
- Extend your ride — higher capacity means fewer stops to recharge and longer range per charge.
- Less worry about battery health — built-in BMS protects against short circuit, over-charge, over-discharge and over-current.
- Choose the right balance of weight and range — pick the 21Ah down-tube for maximum distance or the 17Ah top-tube for a lighter bike.
- Simpler charging — standard 4A charger for routine, predictable recharging times.
- More dependable rides on hills and longer trips thanks to consistent power delivery and cell balancing.
Features
- Compatibility: Designed to work with the Eunorau Flash e-bike.
- Two form factors: down-tube battery (21Ah) and top-tube Hailong battery (17Ah).
- Integrated BMS with cell balancing for safety and longevity.
- Includes a 4A charger for standard charging.
- Durable black finish that matches the bike’s aesthetics.
- Cycle life rated at approximately 500–800 cycles under normal usage.
Specifications
- Compatibility:
- Eunorau Flash — https://eunorau-ebike.com/products/flash
- 52V 21Ah HYFX-D (LG3500) — Down-tube battery
- Model: 52V21Ah lithium ion e-bike battery (HYFX-D LG3500)
- Nominal Voltage: 52V
- Rated Capacity: 21Ah
- Weight: 13.9 lbs (?6.3 kg)
- Standard Charge Current: 4A
- Type: Down-tube battery
- Color: Black
- Cycle Life: 500–800 cycles
- Charger: 4A charger included
- BMS & Balance: Short-circuit protection, over-charge protection, over-discharge protection, over-current protection, cell balancing
- 52V 17Ah Hailong — Top-tube battery
- Model: 52V17Ah lithium ion e-bike battery (Hailong)
- Nominal Voltage: 52V
- Rated Capacity: 17Ah
- Weight: 10.5 lbs (?4.8 kg)
- Standard Charge Current: 4A
- Type: Top-tube (Hailong) battery
- Color: Black
- Cycle Life: 500–800 cycles
- Charger: 4A charger included
- BMS & Balance: Short-circuit protection, over-charge protection, over-discharge protection, over-current protection, cell balancing
- --- This Variant ---
- Battery Capacity: Second 21AH+Third 17AH
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.8 ★★★★★
Based on 443 reviews
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Product Reviews
★★★★★ 5
... or sacred poem as my focus of concentration) I enjoy reading this book at bedtime for inspiration
Format: Paperback
Since I began practicing Passage Meditation (meditating on a prayer or sacred poem as my focus of concentration) I enjoy reading this book at bedtime for inspiration. I find that when certain prayers or poems resonate with me, stanzas from them will come to me during the day. Some of them I memorize quicker than others. I appreciate this book for having so many from so many traditions compiled and translated so beautifully. At the back of the book you can look them up by category, such as prayers for courage, or fear, etc. I am surprised at how many I have memorized, and how much they affect my thoughts throughout the day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 30, 2014
★★★★★ 5
One of the most excellent books ever published!
Format: Paperback
All the books I own today and have ever owned this one is primary importance to me. Beautiful collection of poetry and prose for Spiritual encouragement.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 11, 2025
★★★★★ 5
Make your life a work of art
Format: Kindle
These passages drawn from all the world's great spiritual traditions coupled with enthusiastic sustained practice of Eknath Easwaran s 8point program can provide depth and meaning to one's life and a greater understanding of what the check it is we are all doing here on this beautiful yet long suffering planet. Don't be thrown off by the quiet delivery or the religious stuff -- it's always common sense experience based and never heavy handed. You'll get as much out of it as you put into it. The people that have used this form of meditation and are associated w the blue mountain center are some of the most extraordinary humble people you will ever meet. Good luck.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 2, 2017
★★★★★ 5
A Beautiful Resource
Format: Kindle
Eknath Easwaran was a wonderful teacher who taught passage meditation, memorizing and repeating to oneself sacred writings. These writings are drawn from many of the great religious traditions. In the last few years of my aging mother's life, she and I spent many hours reading these passages together, meditating on them, and discussing them. We had our favorites and when one of us was travelling, we would agree to meditate on one or two particular ones at the same time wherever we were. At her death, I recited many of these passages to her to bring her peace. She died more than a decade ago but these passages still evoke that beautiful time in my mind and I am grateful for this beautiful resource of passages. I find that everything in this book is a source of peace when I read and meditation on it.
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Reviewed in the United States on December 16, 2012
★★★★★ 4
Printed version would have been better
Format: Kindle
The reason I gave "God Makes the Rivers Flow" 4-stars, instead of 5-stars, is a reflection on my choice to get the Kindle Edition. I love my Kindle. But, this book would be better to flip though, not to read like a novel. I think a printed version would have been a better choice.
I have a lot of respect for Eknath Easwaran. He did not just tolerate diversity, he genuinely valued diversity. His works are a great way to bring traditions and peoples together, not only by showing what they have in common (although that is valuable too), but by cerebrating the ways that they differ. His works demonstrate that each tradition has noticed something about God that others did not, and they all add value to humanity's global relationship with God. "God Makes the Rivers Flow" is a great example of that.
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Reviewed in the United States on June 5, 2021
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