Epoch AA 1.5V 2300mAh USB Protected Li-ion Battery - 4 Pack - 18650BatteryStore.com
Shop AA Lithium Battery | 3000mAh 1.5V Double A Battery in New Look – Enegitech
Eveready 504 or NEDA 220 15V Alkaline Battery – Repairs And Spares
Battery 15v TR14s or iec 10f 15 | eBay
A 10V battery with internal resistance 1 Ω and a 15V battery with internal resistance 0.6Ω are connected in parallel to a voltmeter. The reading in the voltmeter will be close to.