Forum Discussion
pianotuna
Jan 31, 2021Nomad III
What counts is usable amp-hours.
When inverters were hugely expensive and low wattage the battery format didn't matter much and twin six volts were the best bang for the buck.
Now that 2000 and 3000 watt inverters are common, and relatively speaking cheap, twin six volts are not quite as useful. What were exotic chemistries 25 years ago are now affordable. I know of a drop in 100 amp-hour LiFePo4 for $313 USD.
The ultimate would be Lithium Titonate because they can do 9C. SiO2 would be not shabby either. BL13 could run his 2k inverter at 20% state of charge on a single SiO2--but has since added a 2nd one.
Cost per usable amp-hour is the calculation I would use.
If you don't boondock--then pretty much any 12 volt would be just fine. But so would 2 six volt golf cart jars.
When inverters were hugely expensive and low wattage the battery format didn't matter much and twin six volts were the best bang for the buck.
Now that 2000 and 3000 watt inverters are common, and relatively speaking cheap, twin six volts are not quite as useful. What were exotic chemistries 25 years ago are now affordable. I know of a drop in 100 amp-hour LiFePo4 for $313 USD.
The ultimate would be Lithium Titonate because they can do 9C. SiO2 would be not shabby either. BL13 could run his 2k inverter at 20% state of charge on a single SiO2--but has since added a 2nd one.
Cost per usable amp-hour is the calculation I would use.
If you don't boondock--then pretty much any 12 volt would be just fine. But so would 2 six volt golf cart jars.
About Travel Trailer Group
44,029 PostsLatest Activity: Jan 21, 2025