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  1. thunderheart

    Samsung 21700 battery battle - 50G vs 48G vs 50E

    Original article: https://www.thunderheartreviews.com/2021/12/samsung-21700-50G-48G-50E-test-comparison.html Samsung has a good lineup of 21700 Li-ion batteries and when i tested INR21700-50G i thought it would be interesting to test INR21700-48G cell too because the new batch of 48Gs came in...
  2. thunderheart

    LiFePO4 vs NMC nail penetration safety test

    Bg_480HUheo
  3. thunderheart

    Queen Battery QB18650 2500mAh capacity test + comparison with QB18650 2600mAh

    Original article: https://www.thunderheartreviews.com/2020/12/queen-battery-qb18650-2500mah-5C.html In Queen Battery's lineup QB18650-2500 stands very close to QB18650-2600 not only by capacity rating but also with max supported discharge current - the 2500mAh cell supports 5C or 12.5A and the...
  4. thunderheart

    My battery holder ver.4.0 with 4-wire connection support

    Hi guys. It's been a long time i didn't post here and here i'm back:) All this time i was thinking on making a new holder for my tests and eventually i've designed and made one which i'm ready to show you. Here it is - my holder version 4.0. All your thoughts are precious for me so don't...
  5. thunderheart

    Sanyo UR18500FK 18500 size Li-ion cell's capacity test

    Original article: https://www.thunderheartreviews.com/2020/02/sanyo-ur18500fk-1700mAh-18500-li-ion-battery-test.html Sanyo UR18500FK is a 1700mAh rated 18500 cell capable of giving up to 3.24A continuously. 18500 size means a cylindical cell with 18mm diameter and 50mm length - 15mm shorter...
  6. thunderheart

    Sony VTC5 test + comparison with Samsung 25R

    Original article: https://www.thunderheartreviews.com/2019/09/sony-vtc5-test-review.html Sony VTC5 or US18650VTC5 is a 2600mAh 18650-size Li-ion cell which supports continuous discharge at up to 30A with 80°C temperature cut or up to 20A with no temperature control. VTC5 can hold up to 100A...
  7. thunderheart

    Queen Battery QB26650-2300 LiFePO4 cell's test + comparison with A123 Systems ANR26650M1B

    Original article: https://www.thunderheartreviews.com/2019/09/queen-battery-qb26650-2300mAh-lifepo4.html QB26650-2300 is the second LiFePO4 model from Queen Battery. The 2500mAh cell i tested recently and i'll compare the two QB models to A123 Systems ANR26650M1B Grade A and Grade B cells...
  8. thunderheart

    Queen Battery QB18350 900mAh 9A Li-ion cell's capacity test

    Original article: https://www.thunderheartreviews.com/2019/08/queen-battery-qb18350-900mah-test.html I've tested cylindrical cells of different sizes - from 10440 to 28600, but it's the first time i've got an 18350 cell. Queen Battery QB18350 is a 900mAh cell rated at 9A max. It has the same...
  9. thunderheart

    Samsung 29E ver.7 (29E7) 2900mAh cell's capacity test + comparison with 29E ver.6

    Original article: https://www.thunderheartreviews.com/2019/08/samsung-29e-version-7-29e7-2900mah-review.html Less than a month ago i tested Samsung 29E v.6 which many people say is a better cell than the v.7. This time i've tested the v.7 cell and compared them to find out where is the truth...
  10. thunderheart

    LG M50T Grade A high capacity 5000mAh 21700 cell's test

    Original article: https://www.thunderheartreviews.com/2019/08/lg-m50t-grade-a-test.html LG INR21700 M50T is a 5000mAh Li-ion cell of 21700 size (also known as 2170). LG M50T was previously known as M50 (without T) and even in the tentative version of the datasheet the model name was M50. More...
  11. thunderheart

    Capacity test: Queen Battery QB18650 2000mAh 20A high-drain cell which surprised me

    Original article: https://www.thunderheartreviews.com/2019/08/queen-battery-qb18650-2000mah-20a-test.html This is the 3rd 18650-size model in Queen Battery's lineup. I've already tested the 3000mAh low-drain and 2600mAh mid-drain ones. This one is rated at 2000mAh and supports continuous...
  12. thunderheart

    Queen Battery QB26650-2500 LiFePO4 cell's test + comparison with A123 Systems ANR26650M1B

    Original article: https://www.thunderheartreviews.com/2019/07/queen-battery-qb26650-2500mAh-lifepo4.html Queen Battery QB26650-2500 is a 26650 size 2500mAh 50A/20C LiFePO4 cell which supports up to 125A/50C pulse discharge. The battery was bought from my reliable supplier (Queen Battery) and...
  13. thunderheart

    Panasonic NCR18500A - 2000mAh 18500-size Li-ion cell's capacity test

    Original article: https://www.thunderheartreviews.com/2019/07/panasonic-ncr18500a-2000mah-18500-test.html 18500 shares the same 18mm diameter with 18650 but it's 15mm shorter (18x50mm). This size is often used in digital cameras' battery packs, usually in 2S configuration. Panasonic...
  14. thunderheart

    Queen Battery QB14500 700mAh - a 3.7V AA-size Li-ion battery's capacity test

    Original article: https://www.thunderheartreviews.com/2019/07/queen-battery-qb14500-700mah-test.html 14500 is the same well-known AA size we used to see. It means that the diameter of the cell is 14mm and it's 50mm long. 14500 is used to refer to 3.7V Li-ion or 3.2V LiFePO4 cells while AA is...
  15. thunderheart

    Samsung 29E version 6 (29E6) 2900mAh cell's capacity test

    Original article: https://www.thunderheartreviews.com/2019/06/samsung-29e-version-6-29e6-2900mah-review.html Samsung INR18650-29E is available in 2 versions - version 6 (29E6) which is the hero of this test, and version 7 (29E7). Visually they differ by heat shrink tube color and the version is...
  16. thunderheart

    Samsung 26J (26JM) 2600mAh low price cell's capacity test

    Original article: https://www.thunderheartreviews.com/2019/06/samsung-26j-26jm-2600mah-capacity-test.html Samsung ICR18650-26J is a 2600mAh Li-ion cell of 18650 size which supports continuous discharge at up to 5.2A. The battery was bought from my reliable supplier (Queen Battery) and tested...
  17. thunderheart

    Queen Battery QB10440 300mAh - a 3.7V AAA-size Li-ion battery

    Original article: https://www.thunderheartreviews.com/2019/06/queen-battery-qb10440-300mah-test.html 10440 size is more known as AAA - it means that the cell is 10mm in diameter and 44mm long. In Lithium world 10440 is a rare size but you can find 3.2V LiFePO4 and 3.7V Li-ion models just by...
  18. thunderheart

    Queen Battery QB18500 1600mAh - shorter than 18650

    Original article: https://www.thunderheartreviews.com/2019/06/queen-battery-qb18500-1600mah-test.html 18500 cells share the same 18mm diameter with 18650 cells but are 15mm shorter - their length is 50mm vs 65mm in case of 18650. QB18500 is a 1600mAh low-drain cell which supports continuous...
  19. thunderheart

    SANYO UR18650ZK - low drain 2500mAh cell's capacity test

    Original article: https://www.thunderheartreviews.com/2019/06/sanyo-ur18650zk-2500mah-test.html Sanyo UR18650ZK is a low-priced low-drain 18650 Li-ion cell which is made by Sanyo in Nanjing, China. It's one of those cells without any datasheet available across the web. The battery was bought...
  20. thunderheart

    Samsung 30Q - high drain 18650 Li-ion cell's capacity test

    Original article: https://www.thunderheartreviews.com/2019/05/samsung-30q-capacity-test.html Samsung INR18650-30Q is a high capacity 3000mAh Li-ion cell of 18650 size which supports continuous discharge at up to 15A. It's can be called a high drain cell or even a mid-to-high drain one. The...
  21. thunderheart

    Panasonic NCR18650BD 3200mAh 10A cell's capacity test

    Original article: https://www.thunderheartreviews.com/2019/05/panasonic-ncr18650bd-3200mah-10a-test.html Panasonic NCR18650BD is a mid-drain high capacity Li-ion cell in traditional 18650 format. It's rated at 3180mAh and supports discharging at up to 10A. The battery was bought from my...
  22. thunderheart

    Panasonic NCR18650BM 3200mAh cell's capacity test

    Original article: https://www.thunderheartreviews.com/2019/04/panasonic-ncr18650bm-3200mah-test.html Panasonic NCR18650BM is a low drain high capacity Li-ion cell in traditional 18650 format. It's rated at 3180mAh and supports discharging at up to 3.64A. The battery was bought from my...
  23. thunderheart

    SANYO UR14500P AA-size Li-ion battery's capacity test

    Original article: https://www.thunderheartreviews.com/2019/04/sanyo-ur14500p-aa-size-li-ion-battery.html 14500 is the same AA size we used to see in alkaline and Ni-MH batteries. It assumes 50mm in length and 14mm in diameter. Previously i've tested SONY US14500VR2 and TrustFire 900mAh and...
  24. thunderheart

    4.35V LG E1 - capacity tests at 4.35V and 4.20V

    Original article: https://www.thunderheartreviews.com/2019/03/lg-e1-li-hv-battery-capacity-test.html I've previously tested Sanyo UR18650ZTA and this time i've got anoother 4.35V cell - LG E1. The battery was bought from my reliable supplier (Queen Battery) and tested with ZKETECH EBC-A20 and...
  25. thunderheart

    Samsung 25R - high drain 18650 Li-ion cell's capacity test

    Original article: https://www.thunderheartreviews.com/2019/03/samsung-25r-high-drain-18650-li-ion-battery-test.html Samsung INR18650-25R is a 2500mAh Li-ion cell of 18650 size which supports continuous discharge at up to 20A. The battery was bought from my reliable supplier (Queen Battery)...
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