Mike, I have been reading about startup battery companies developing new technologies that hopefully will rival or exceed current lithium technology. One such company that I have been reading about is Alsym Energy. They claim a safer battery that is far less prone to fire, more environmental safer and cheaper to build. Hopefully this will go somewhere!
There is no special damage done to lead-acid batteries discharged below 50%. This is 100% a myth. A graph of cycle life vs. average depth of discharge will show a linear effect beyond about a 20% average depth of discharge. Additionally, lithium-ion batteries and lead-acid batteries both experience reduced cycle life in proportion to average depth of discharge.
That’s not how it works. You made the claim that there is something special about the 50% discharge point. You need to show documentation from a battery manufacturer stating there is something special about it.
The cycle life vs. average depth of discharge graphs clearly show a linear relationship between the two after about the 20% level. If there was some special feature at 50%, there would be a non-linearity or change of slope there. There is neither.
This myth arose because engineers use a rule of thumb that when designing a battery bank, you should consider charging frequency and battery use then select a battery bank capacity that provides for about 50% maximum average discharge which is the best choice economically for battery life vs. cost.
Denis Phares, the CEO of Battle Born Batteries stated in an interview that BB batteries can operate down to 25 degrees but need to be recharged at a slower rate at that temperature. Lead acid batteries have the same sort of temperature concerns. Good information being discussed in the interview. https://www.youtube.com/watch?v=ywn-vBjKblI
This Statement is Misleading at best. "The unique characteristics of the LFP cell make an ideal replacement for the standard 12-volt automobile battery."
Sounds like you should put one in your car which generally would be a huge mistake as they are not designed to put out the AMPS needed to start a vehicle.
This is said later "Most LFP batteries will only provide a discharge rate of two times the rated power of the battery. This may affect the ability to start your on-board generator or power a large inverter to run your air conditioner. In some cases, a super-capacitor is added to provide extra peak current for these situations." but a super capacitor is not going to crank a cold engine for 30-40 seconds straight.
Mike, I have been reading about startup battery companies developing new technologies that hopefully will rival or exceed current lithium technology. One such company that I have been reading about is Alsym Energy. They claim a safer battery that is far less prone to fire, more environmental safer and cheaper to build. Hopefully this will go somewhere!
There is no special damage done to lead-acid batteries discharged below 50%. This is 100% a myth. A graph of cycle life vs. average depth of discharge will show a linear effect beyond about a 20% average depth of discharge. Additionally, lithium-ion batteries and lead-acid batteries both experience reduced cycle life in proportion to average depth of discharge.
John, please show documentation from any FLA or AGM battery manufacturers supporting your claim.
That’s not how it works. You made the claim that there is something special about the 50% discharge point. You need to show documentation from a battery manufacturer stating there is something special about it.
The cycle life vs. average depth of discharge graphs clearly show a linear relationship between the two after about the 20% level. If there was some special feature at 50%, there would be a non-linearity or change of slope there. There is neither.
This myth arose because engineers use a rule of thumb that when designing a battery bank, you should consider charging frequency and battery use then select a battery bank capacity that provides for about 50% maximum average discharge which is the best choice economically for battery life vs. cost.
Denis Phares, the CEO of Battle Born Batteries stated in an interview that BB batteries can operate down to 25 degrees but need to be recharged at a slower rate at that temperature. Lead acid batteries have the same sort of temperature concerns. Good information being discussed in the interview. https://www.youtube.com/watch?v=ywn-vBjKblI
This Statement is Misleading at best. "The unique characteristics of the LFP cell make an ideal replacement for the standard 12-volt automobile battery."
Sounds like you should put one in your car which generally would be a huge mistake as they are not designed to put out the AMPS needed to start a vehicle.
This is said later "Most LFP batteries will only provide a discharge rate of two times the rated power of the battery. This may affect the ability to start your on-board generator or power a large inverter to run your air conditioner. In some cases, a super-capacitor is added to provide extra peak current for these situations." but a super capacitor is not going to crank a cold engine for 30-40 seconds straight.