Amazon.com: HQRP 2-Pack USB 9V Lithium-Ion Rechargeable Battery, High Capacity 500mAh 9-Volt, 1.5 H Fast Charge, 800 Cycle with Micro USB Cable, Radio Square 6LR61 7.2H5 6KR61 6HR61 PP3 MN1604
What's inside the Conrad Energy 9V Li-ion battery?
CITYORK 9V Battery 1200mAh PP3/MN1604/6F22/6LR61 USB Lithium Battery, with Micro USB Charging Port, Suitable for Smoke Alarms, Gas Stove, Guitar, Keyboard - Newegg.com
HQRP USB 9V Lithium-Ion Rechargeable Battery, High Capacity 500mAh 9-Volt, 1.5 H Fast Charge, 800 Cycle with Micro USB Cable, Radio Square 6LR61 7.2H5 6KR61 6HR61 PP3 MN1604 - Walmart.com
EBL 9v Battery USB Rechargeable Lithium 6f22 PP3 Block 9volt Li-ion charger Lot | eBay