Battery Draw Bogus Math? Peukert UPDATE 2
Update- 11 Oct 20, Update 2- 12 Oct 20 Thinking one 100AH battery that can be drawn down to very low SOC gives you nearly the same "usable AH" as two regular AGM or Wet batts, as seen advertized, ...
Forum Discussion
Rule # 5
Try and overthink a battery E=MC2 time evaluation and run around with a perpetual headache. I had considerable variations, same brand, same batch. Only Trojan Industrial and Rolls and Surrette were reasonably accuate and consistant in their figures.
Are you torturing yourself attemting to learn BCI protocol calculatins BFL? Welcome to "Why most manufacturers refuse to publish anything but 20 hour BCI data".
Trojan "Industrial" does not include Golf Car or Scrubber batteries.
Let's toss a nice big wrench into your paper morass...
Batteries same brand same batch that exhibited the *least* amount of storage self discharge and highest amperage retention during a BCI CCA test inevitably acheived the highest numbers in a 100 hours test. The difference wasn't huge but it was there. My 800 + lb battery pairs still had over a 3% variance in 12 units. The cost and remoteness validated the need for a 100 hour test. The "weakest" pair were designated "weak sister" and placed nearest the battery shed door. And sure enough the variance amplified over the years.
For accurate testing you need lab qualified instruments, and accurate time control. Constant amperage discharge load mechanisms.
And devotion to testing.
Try and overthink a battery E=MC2 time evaluation and run around with a perpetual headache. I had considerable variations, same brand, same batch. Only Trojan Industrial and Rolls and Surrette were reasonably accuate and consistant in their figures.
Are you torturing yourself attemting to learn BCI protocol calculatins BFL? Welcome to "Why most manufacturers refuse to publish anything but 20 hour BCI data".
Trojan "Industrial" does not include Golf Car or Scrubber batteries.
Let's toss a nice big wrench into your paper morass...
Batteries same brand same batch that exhibited the *least* amount of storage self discharge and highest amperage retention during a BCI CCA test inevitably acheived the highest numbers in a 100 hours test. The difference wasn't huge but it was there. My 800 + lb battery pairs still had over a 3% variance in 12 units. The cost and remoteness validated the need for a 100 hour test. The "weakest" pair were designated "weak sister" and placed nearest the battery shed door. And sure enough the variance amplified over the years.
For accurate testing you need lab qualified instruments, and accurate time control. Constant amperage discharge load mechanisms.
And devotion to testing.
