Forum Discussion
Oldfordman
Jul 23, 2017Explorer
It's only a matter of time before we will see "affordable" Li-Ion battery systems that can provide 120V AC for all our coach power/lighting needs.
Our current 12V systems have one serious problem. In order to power 120 VAC appliances the current draw to the inverter requires conductors the size of small water pipes. Also battery banks get heavier and heavier.
I recently purchased a Chevy Volt that has a 17 Kw + main battery. 360 volt potential means small conductors, even to the main propulsion motor. The range extender "motor/Generator" is about the size of a standard 4 cylinder engine/transaxle package from earlier vehicles. At 75 Kw output it's quite powerful for it's size. I recall a 60 Kw genset my military company towed around on a trailer that was larger than a "jeep".
I just recently saw some Li-Ion batteries for sale at a measly price of $1200 (group 31 size). Given time the price will be down to less than a current lead/acid type Deep Cycle battery and storage banks will provide days of energy with far less weight requirements. Evolution. There's no reason we have to keep using the same technology for lighting as we use for engine starting.
Our current 12V systems have one serious problem. In order to power 120 VAC appliances the current draw to the inverter requires conductors the size of small water pipes. Also battery banks get heavier and heavier.
I recently purchased a Chevy Volt that has a 17 Kw + main battery. 360 volt potential means small conductors, even to the main propulsion motor. The range extender "motor/Generator" is about the size of a standard 4 cylinder engine/transaxle package from earlier vehicles. At 75 Kw output it's quite powerful for it's size. I recall a 60 Kw genset my military company towed around on a trailer that was larger than a "jeep".
I just recently saw some Li-Ion batteries for sale at a measly price of $1200 (group 31 size). Given time the price will be down to less than a current lead/acid type Deep Cycle battery and storage banks will provide days of energy with far less weight requirements. Evolution. There's no reason we have to keep using the same technology for lighting as we use for engine starting.
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