Mac Plus battery | External battery compartment of Mac Plus.… | John Honniball | Flickr
Amazon.com: Keeppower USB Rechargeable Li-ion AA Batteries 3390mWh Double A Protected Lithium Battery 1.5V 2260mAh High Capacity Fast Charge Included with a 4-in-1 Charging Cable (Pack of 4) : Health & Household
CRAFTSMAN V20 4 Amp-Hour; Lithium Power Tool Battery Kit (Charger Included) in the Power Tool Batteries & Chargers department at Lowes.com