Test ANHTCzyx 12V/24V 8A Intelligent Automatic Pulse Repair Car Battery Charger from Amazon

Using a old car battery tests NHTCzyx 12V/24V 8A Intelligent Automatic Pulse Repair Car Battery Charger. Since the battery isn&fully discharged, the 8A charger only takes about 40 minutes to charge the battery, then turns into trickle / float charging. The charger constantly maintains 13.8v voltage, so it can be used as a battery maintainer. The test shows the charger&voltage output is very accurate. The current output which the charger shows is slightly different from my clamp amp meter. Since clamp amp meters usually aren&very accurate, the slight amperage difference displayed by the charger and amp meter is not considered problematic.