“Four years of full-time traveling, and these batteries still give me 180Ah of usable capacity. We run a diesel heater all night, a 12V compressor fridge, and charge laptops. The only downside is the weight—each one is like lifting a small boulder—but for the price of half a lithium system, I can’t complain.”
If your charge controller has a temperature probe, use it. For every 1°C below 25°C, increase voltage by 0.03V per cell; above 25°C, decrease by 0.03V per cell. Opus 2010 Mega
For a remote cabin or tiny home, pairing an Opus 2010 Mega with a 300W–600W solar array provides reliable nightly power for LED lights, phone charging, a water pump, and a small refrigerator. Its low self-discharge means you can leave the cabin for weeks without worrying about battery sulfation. “Four years of full-time traveling, and these batteries
No. While it can start an engine in an emergency, its internal resistance is higher than a starter battery. Doing so regularly will shorten its life. For every 1°C below 25°C, increase voltage by 0
Therefore, "Opus 2010 Mega" likely refers to a legendary, perhaps apocryphal, compilation of audio tools or game modifications released around 2010 that featured high-quality audio capabilities, possibly utilizing early CELT/Opus technology or simply trading on the name "Opus" to signify quality.