Review on 🔌 Vidpro PT-UNV Universal Li-Ion Battery Charger - Versatile Programmable Travel-Friendly Charger with Overcharge Protection and Automatic Polarity Detection - Compatible with Most Battery Types by Kristi Green

Charges my Netgear Nighthawk MR1100 W-10a battery. My Nighthawk will not charge batteries if their voltage drops below a certain level. This gives an error message. I've tried putting the battery in after turning the Nighthawk on and it worked sometimes but mostly disabled. The PT-UNV is the only external charger I've found that has a spring-loaded latch that opens wide enough to charge a W-10a battery. . The battery has 4 pins. Align the charging tips with the two outer contacts and gently close the latch to make contact. The device will charge the battery to approximately 4.19V. The Nighthawk will charge another 10V to 4.29V. You can still turn on the Nighthawk before inserting the battery. I currently use aftermarket batteries. I wish I could keep my original factory batteries instead of throwing them in the store recycling bin. This charger may have saved her.