I used the product an hour after receiving it. It ranges from car batteries to UPS batteries. With two completely dead UPS batteries, I connected one to this charger and the other to a regular charger. An hour later batt. It was still "dead" on the registration fee, and it was forty percent on the caviche. Recharge the "dead" battery. on Cavish up to forty% and then connected in series and charged at 24V. That was my experiment. I have also charged both 12v and 24v truck batteries. Follow the instructions. Connect to battery first. Always use this charger to charge the battery on vehicles with a defective alternator. Works every time and let me know the battery can be recharged. My only problem is that the fan has stopped working. It works so well that one of my customers ordered it. GOOD PRODUCT. February 27, 2019 My charger is still charging the batteries well. , but it started interfering with FM radio reception in the workshop. I removed the cover and found a swollen filter capacitor. During the dyno tests, the fan is still fine, which means that the problem is in the circuit. I'll take it to the electronics engineer. and fix it. I still think this is a good charger.
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