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EcoSolutions 217 OO Rechargeable Battery Case Set, 2pack 5000mah Large Capacity 3.6Volt 217 OO Tip Battery for flashlights ect,

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Availability: Only 7 left in stock, order soon!
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Arrives Sunday, May 10
Order within 21 hours and 11 minutes
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Features

  • Widely Compatible: 5000mAh 217 OO Rechargeable battery large capacity,Which can be widely used for electronic devices, such as LED flashlights, emergency lights, portable devices, headlights, toys, remote controls, etc.
  • Reliability and Durability: High-quality manufacturing processes and materials ensure the stability and durability of it, allowing them to perform exceptionally well in various environments and usage conditions.
  • Large capacity: 217 OO battery With a capacity of 5000mAh and voltage of 3.6v battery, high capacity battery with low discharge rate, high power consumption, high energy density and pollution-free design, No need to change batteries frequently.
  • Enjoy our warm after-sales service: If you encounter any issues, don't hesitate to reach out to us. We're committed to resolving them for you promptly.

Number of Batteries: 2 Unknown batteries required.


Brand: EcoSolutions


Battery Cell Composition: Nickel-Zinc


Battery Capacity: 5000 Milliamp Hours


Recommended Uses For Product: Camera


Package Dimensions: 3.15 x 1.97 x 1.06 inches


Item Weight: 5.9 ounces


Item model number: HLXD-217


Batteries: 2 Unknown batteries required.


Date First Available: May 8, 2024


Manufacturer: EcoSolutions


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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  • Klarna Financing
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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good batteries
First set did not work. I calls Customer Service and they sent out the second set. When I received them, they worked great. I charged them just to top them off.
Reviewed in the United States on March 6, 2026 by David Luckman

  • Great!
In the cursed realm of Boletaria, every advantage must be seized, and none is more crucial than the ability to pierce the veil of darkness. As a Hunter who often finds myself in the deepest, most forgotten corners of the Archstones, the EcoSolutions 21700 Rechargeable Battery Case Set has become an indispensable part of my survival kit. The "2-pack" ensures I always have a spare, ready to swap in when the first begins to wane, a luxury I once only dreamed of. The "5000mAh Large Capacity" means fewer interruptions to my exploration or my desperate retreats. I've used these to power my modified lantern through entire expeditions into the Prison of Hope, illuminating the path and revealing the grotesque puppets and mind-flayers before they could spring their traps. What truly sets these apart is their reliability and the fact that they are "rechargeable." Unlike the finite resources of the world, these batteries offer a sustainable source of light, allowing me to conserve my precious souls for leveling and repairs, rather than constantly purchasing inferior, single-use power cells. They hold their charge well, even after long periods of disuse, which is vital when one might spend days or weeks battling a particularly stubborn demon. For any Slayer of Demons who understands the strategic importance of sustained illumination and resource management, these batteries are a wise and essential investment. May your path always be lit. ... show more
Reviewed in the United States on February 11, 2026 by STEVEN MAGALLANES

  • False advertising
They are shorter then my Fenix and imalent 21700. Bought them for my xtar pb2sl power bank. They barely fit. Some mods might be needed. I will run tests on to see true capacity, I can almost promise you the are not a true 5 ah battery. I would say just buy the tenerg, LG, Panasonic, batteries and know you’re buying quality. Too early for me to really tell. I probably wouldn’t buy again. After testing they are only 4 ah these are false advertising shame on this seller Buy real cells, Panasonic, tenergy, lg ... show more
Reviewed in the United States on February 1, 2025 by Amazon Customer Amazon Customer

  • Work as advertised. no issues.
These are used in my new Jumper T15 radio. These batteries perform and charge as expected, arrived quickly. I only have one set of batteries for my radio since they last so long. One thing I thought was odd is that the batteries seemed to pop out of the plastic housing in my radio for the 21700 batteries. So much so that I had to wrap the battery enclosure in electrical tape to keep them from popping out on their own. I thought it was the fault of the Radio manufacturer or perhaps it was a housing for an 18650 but it's possible based on comments of others that these batteries are a little thicker than they should be. ... show more
Reviewed in the United States on December 28, 2024 by INTERNET AGED INTERNET AGED

  • Good items
Is good
Reviewed in the United States on February 21, 2026 by Amazon Customer

  • Charged up OK
Proved the issue is my flashlight, not the batteries. Confirmed the batteries were OK with a voltmeter. So, all I really say is that they took the charge and it lasted for at least a weekend.
Reviewed in the United States on February 22, 2026 by Walter in Texas

  • Do NOT fit Olight Baton 3 MAX.
These do not fit Olight Baton 3 MAX. Too short.
Reviewed in the United States on December 13, 2025 by D. Dixey

  • Good product at a great price.
I have four of these EcoSolutions 5000 mAh 21700 batteries for use with my Fenix CL26R Pro Camping Lanterns and Fenix PD36R flashlights. In my experience they are every bit as reliable as the 5000 mAh Fenix ARB-L21-5000U Rechargeable Battery. They hold a charge well and provide full functionality to Fenix devices - which not all replacement batteries will do. While they aren't quite fully 5000 mAh, they're close... but at 50-55% less expensive than OEM originals, they're a great value while providing a reliable power source. ... show more
Reviewed in the United States on May 7, 2025 by Chandler2112 Chandler2112

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