Review on 🔋 EBL Rechargeable Battery Packs for Xbox One/Xbox Series X/S - 2×2800mAh Xbox One Controller Battery Packs for Xbox One/One S/One X/One Elite by Sasha Hsiao

yes they are installed in the charger as in the picture. Minus on the left and plus on the right. With a label, of course. There are no minus and plus signs on the charger, but in life reading is fundamental. It took about 2.5 hours to go from 2 bars to 4 bars on the display. Approximately 3.2 hours to charge out of the box. The charger is fully automatic and safe if you insert the batteries upside down. never do that! If you have to turn the device upside down, it's not done right. Send it back and get a new one. You can check the polarity of the batteries to make sure that the batteries were accidentally placed in the protective case. Automatic shutdown when charging worked as advertised. The block was only slightly warm at best. If yours gets very hot, your batteries or charger may be defective.