I want to charge my 9V battery (HiW). How could I do it? None of the YouTube tricks worked. Is it safe? - Quora
Amazon.com: Lankoo USB 9V Lithium ion Rechargeable Battery, High Capacity 650mAh Rechargeable 9V Battery, 1.5 H Fast Charge, 1200 Cycle with Type C Port Cable, 2-Pack