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  • 26/03/2021

    Very nice batteries. First two photos tells all. Discharge values are a bit over 4900mAh while charging values are a bit lower than 4900mAh. Internal resistance is a bit higher, around 20mΩ which is also very acceptable for 15A constant discharging rate. I tested 8 batteries in total and all have similar characteristics which proves consistent quality that came from Astrolux. Not only this batteries look great ( my personal taste ofc ), they also act great and so I am VERY happy with this purchase. Above all the price for this quality is great. If you need high capacity 21700 batteries at low price go for it. Bear in mind I tested on Opus which in its own manual says that tested values of internal resistance should be reduced a bit because of the resistance in the very charger so I assume even the resistance values are very close to the truth! This batteries are really worth of buying and so highly recommended. Thank You Banggood and way to go Astrolux!!!

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  • 05/05/2021

    These seem like good cells. I love the white and blue wraps. All 4 cells weighed 74.5g each and each had a shipping voltage of 3.48v. Running a discharge test at .2C (1000mA) all cells came in at around 5000mAh of capacity: 4993, 4994, 5003, and 5038mAh. I forgot to take a photo of the one discharge test, so I took a photo of the finished recharge cycle on my Nitecore UMS2 (5029mAh). They are slightly larger in diameter then some other 21700's, but they still fit my Convoy S12 which has the narrowest battery tube of all my 21700 lights, but there is no room to spare. It took 5 and half weeks to be delivered and they were well packaged and they all had individual plastic cases. Will have to see how they hold up over time, but I doubt that there will be any problems.

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  • 20/04/2021

    I already made the review of this batteries in the group of four so in this review i present no testing for the fact it is not necessary. Batteries production standard is high and the batteries are as reliable as the flashlights itself. If 15A constand drain is what you need then go for it, no mistake whatsoever!! Above all their design is great and you get them nicely packed and so each one in its own plastic box. All i can is to be pleased with the purchase and to again recommend the batteries!!

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  • 31/05/2021

    The batteries came in fact in individual plastic boxes, however, one of them had a broken lock (see para. Photo). Batteries are intact, no actual tank tested. At the price - interesting offer.

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  • 13/04/2022

    Great batteries, each cell weighs 70 grams for 5000 mAh, is heavier than a 68 gram 4000 mAh. Safely packed in its own hard case and wrap in thick packing, received in good condition. Each cell precharged to 3.45 volts for safe transport. Buy with confidence ! These Astrolux are good 21700 cells !

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  • 11/12/2021

    Good battery.

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  • 18/09/2022

    Does not fit the Lithiumcell

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  • 30/07/2022

    Good product, carefully packed

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  • IanVIP4

    excellent batteries 😀💥

    Comments (1)
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  • 11/01/2022

    Battery cases destroyed, no bubble wrap. Please package these batteries better, you could cause fire.

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