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Car batteries, jump starters and chargers

I Had No Idea These Were So Good!

Jan 2026 · 20 min · 15 products tested

His winner

FlexSolar

It had the best average finish and performed well in almost every category

  1. 1stFlexSolar
  2. 2ndGrecell

Results, round by round

Solar Production Overcast Flat

Higher is better, in watts13 of 15 products have agreed numbers, so no leader is marked
  1. 1NXQWLL10.67wattsAmazon
  2. 2SUNER POWER7.33wattsAmazon
  3. 3Grecell7wattsAmazon
  4. 4TBER6.37wattsAmazon
  5. 5Hoysicy6.09wattsAmazon
  6. 6SOLPERK5.81wattsAmazon
  7. 7EBL4.87wattsAmazon
  8. 8VOLT HERO4.13wattsAmazon
  9. 9FlexSolar4wattsAmazon
  10. 10Newpowa3.35wattsAmazon
  11. 11Schumacher3.08wattsAmazon
  12. 12TogoPOWER2.68wattsAmazon
  13. 13PulseTech0.12wattsAmazon

Solar Production Overcast 28 Degrees

Higher is better, in watts12 of 15 products have agreed numbers, so no leader is marked
  1. 1NXQWLL10.49wattsAmazon
  2. 2Grecell8.87wattsAmazon
  3. 3SUNER POWER5.79wattsAmazon
  4. 4FlexSolar5wattsAmazon
  5. 5TBER4.57wattsAmazon
  6. 6EBL4.18wattsAmazon
  7. 7VOLT HERO4.11wattsAmazon
  8. 8SOLPERK3.85wattsAmazon
  9. 9Newpowa2.68wattsAmazon
  10. 10TogoPOWER2.28wattsAmazon
  11. 11Schumacher2.25wattsAmazon
  12. 12PulseTech0.1wattsAmazon

Solar Production Sunny

Higher is better, in watts13 of 15 products have agreed numbers, so no leader is marked
  1. 1FlexSolar21.52wattsAmazon
  2. 2NXQWLL16.77wattsAmazon
  3. 3Hoysicy16.49wattsAmazon
  4. 4Grecell15.71wattsAmazon
  5. 5VOLT HERO15.55wattsAmazon
  6. 6SUNER POWER14.75wattsAmazon
  7. 7SOLPERK14.51wattsAmazon
  8. 8TBER14.37wattsAmazon
  9. 9TogoPOWER14.19wattsAmazon
  10. 10Newpowa14wattsAmazon
  11. 11PulseTech11.97wattsAmazon
  12. 12Schumacher11.86wattsAmazon
  13. 13SHASUXTING2.22wattsAmazon

Everything he tested

Results were read from the video's captions by two AI models, and only the numbers both agree on and that he says out loud are shown. Some results appear only on screen in the video. Check the video before you buy.