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Car batteries, jump starters and chargers

This Simple Tool Just Exposed Bad Car Batteries (and Good Ones)!

May 2025 · 22 min · 14 products tested

The two AI readings did not agree on his winner, so none is shown here. His verdict is in the video.

Watch on YouTube

Results, round by round

Voltage Measurement (Healthy Battery)

Higher is better, in V
  1. 1KONNWEI12.96VAmazon
  2. 2MOTOPOWER 514A12.9VAmazon
  3. 3Kingbolen12.9VAmazon
  4. 4Visdector12.9VAmazon
  5. 5FOXWELL12.9VAmazon
  6. 6TOPDON BT10012.88VAmazon
  7. 7Midtronics12.88VAmazon
  8. 8ANCEL12.87VAmazon
  9. 9AUTOPHIX12.87VAmazon
  10. 10OBDresource12.84VAmazon
  11. 11TOPDON BT20012.83VAmazon
  12. 12MOTOPOWER 515A12.82VAmazon
  13. 13VEEPEAK12.74VAmazon
  14. 14BT30012.68VAmazon

Cranking Amps (Healthy Battery)

Higher is better, in A13 of 14 products have agreed numbers, so no leader is marked
  1. 1BT300826AAmazon
  2. 2VEEPEAK815AAmazon
  3. 3AUTOPHIX814AAmazon
  4. 4ANCEL810AAmazon
  5. 5MOTOPOWER 515A806AAmazon
  6. 6FOXWELL803AAmazon
  7. 7TOPDON BT100798AAmazon
  8. 8Visdector790AAmazon
  9. 9Midtronics785AAmazon
  10. 10KONNWEI780AAmazon
  11. 11TOPDON BT200776AAmazon
  12. 12Kingbolen749AAmazon
  13. 13OBDresource740AAmazon

Internal Resistance (Healthy Battery)

Lower is better, in mOhm12 of 14 products have agreed numbers, so no leader is marked
  1. 1Kingbolen3.4mOhmAmazon
  2. 2OBDresource3.51mOhmAmazon
  3. 3AUTOPHIX3.59mOhmAmazon
  4. 4ANCEL3.61mOhmAmazon
  5. 5VEEPEAK3.65mOhmAmazon
  6. 6BT3003.69mOhmAmazon
  7. 7Visdector3.69mOhmAmazon
  8. 8KONNWEI3.74mOhmAmazon
  9. 9TOPDON BT1003.75mOhmAmazon
  10. 10TOPDON BT2003.87mOhmAmazon
  11. 11MOTOPOWER 515A3.93mOhmAmazon
  12. 12FOXWELL4.53mOhmAmazon

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.