Review on LEICESTERCN Automatic Trickle Battery Charger Maintainer 12V 750mA [4-Pack] for Car Motorcycle Lawn Mower 🔋 Tractor Boat - Efficient Float Charger for SLA ATV Wet AGM Gel Cell Lead Acid Batteries by David Robinson

I needed loop connectors for my larger LEICESTERCN 4 amp charger. For the price I went with this 0.75 amp charger which came with the plug I needed. Every time I connected a good battery, the charger gave an error. I finally found that the quick connector in the cable is backwards. When using alligator clips or loops with another charger from the same brand (which is common as adapters are also sold separately) I have to change black to red and red to black. Not cool and potentially dangerous. How is QA going?