Lifeline alternative: Odyssey PC1800-FT

[davidbrady]

On paper and based on folks' reviews the Odyssey PC1800-FT AGM's may be a worthy competitor to the Lifeline AGM standard. They don't have quite the cycle life of a Lifeline, but on a performance per dollar basis they compare very favorably.

https://www.amazon.com/ODYSSEY-Marine-Ba...=PC1800-FT

The attached document shows how the PC1800-FT can handle an inrush charging current of 3.1C; this is the highest I've seen next to the Lifeline. The Lifeline can handle an inrush of 5C. Again, the Lifeline is the standard but at the price and given how we use our batteries the PC1800-FT may be sufficient. 3.1C brings the battery to better than 95% state of charge within 20 minutes, charging at this rate is well in excess of the charging capacity any of us have in our buses. 3.1C and 5C is a testament to the low internal resistance of these batteries. Low resistance mean less heat, less power loss, less droop under load, and quicker charging times. The Odyssey has an internal resistance of 3.3 milli-ohms as compared to the Lifeline GPL-4D's 2.15. The PC1800-FT's short circuit amperage is 3800 amps as compared to the Lifeline's 6100 amps. (The Lifeline specs are nominal; actual internal resistance and short circuit amperage can vary as much as +-35%). I haven't found anything that compares this favorably to the Lifeline, especially considering its cost. And... they're made in the USA.


  US-ODY-TM-002_1214.pdf (Size: 907.47 KB / Downloads: 1)