Top Positive Review for Battery on Banggood|Shopping Philippines

47% OFF XH-M240 Battery Capacity Tester mAh mWh for 18650 Lithium Battery Digital Measurement Lithium Battery Power Detect Tester Voltmeter US$8.99 US$16.99 View It

Overall:

provostdo 22/02/2022

Excellent produit;, calibration à faire soi même. Mes premiers tests sur des Lithium ion neuve donnaient 300 pour des batteries marquées 4300 mAh. j'ai cru à une erreur, j'ai pris le temps de chronométrer le temps de décharge ( à 500mA, puisque la décharge se fait sur une résistance de puissance de 8 ohms). Effectivement durée de décharge 30 minutes pour passer de 4.3 V à 3.3 V, soit 0.5h X 500mA = 250 mAh. donc batteries pourries. J'ai refait un test avec d'autres batteries provenant d'un PC . Il a fallu 4h pour faire la décharge donc capacité restante 2000 mAh, Mais l'étalonnage ne parait pas très juste. Il manque une notice bien claire, et un graphisme de correspondance entre l'indicateur et la capacité réelle.

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