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!!!

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!!!

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!!!

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.

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.

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.

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!!

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!!

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!!

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.

Аккумуляторы пришли в самом деле в индивидуальных пластиковых боксах, правда, у одного оказался сломан замок (см. фото). Аккумуляторы целы, реальную ёмкость не тестировал. По цене - интересное предложение.

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.

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 !

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 !

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 !

Good battery.

Good battery.

Good battery.

Does not fit the Lithiumcell

Does not fit the Lithiumcell

Does not fit the Lithiumcell

Good product, carefully packed

Sản phẩm tốt, đóng gói cẩn thận

Good product, carefully packed

excellent batteries 😀💥

excellent batteries 😀💥

excellent batteries 😀💥

In January 2022 I bought 4 Pcs of C2650. I hope that C2150 is just as good as C2650. I had to expand the 12V Devalt batterybox with a fan frame. The 12V devalt machine love to get power from 4 pcs C2650. I charge the batteries through a 9 pins Cannon. I can charge each battery separately, or I can charge them in serial.

In January 2022 I bought 4 Pcs of C2650. I hope that C2150 is just as good as C2650. I had to expand the 12V Devalt batterybox with a fan frame. The 12V devalt machine love to get power from 4 pcs C2650. I charge the batteries through a 9 pins Cannon. I can charge each battery separately, or I can charge them in serial.

In January 2022 I bought 4 Pcs of C2650. I hope that C2150 is just as good as C2650. I had to expand the 12V Devalt batterybox with a fan frame. The 12V devalt machine love to get power from 4 pcs C2650. I charge the batteries through a 9 pins Cannon. I can charge each battery separately, or I can charge them in serial.