CAN CSA F382-M89:2014 pdf download.Characterization of Storage Batteries for Photovoltaic Systems
6.1.3.1 Initial Temperature
The temperature of the battery shall be adjusted by allowing it to remain at the test temperature for 48 h prior to commencement of the test, or where the electrolyte is accessible, by moni tor ing the electrolyte temperature until it reaches the test temperature .
Where the electrolyte temperature is determinable, it shall be measured in at least one cel1 out of each ten in the battery .
None of the measured cells shall be adjacent.
6.1.3.2 Initial Charging
The battery shall be initially charged at the test temperature by maintaining the battery at its final charge_ voltage for. 48 h.
During the charging process the current shall not exceed the C/ 20 25°C rate.
Where accessible, the electrolyte specific gravity shall be measured.
6.1.3.3 Discharge
The battery shall be discharged at the test temperature at the C/10 25°C rate until the cutoff voltage is reached. The capacity of the battery shall be determined for these test conditions.Where accessible, the electrolyte specific gravity shall be measured.
6.1.3.4 Charging
The battery shall be charged at the test temperature at the C/ 20 25°C rate until the final charge voltage is reached. The ampere-hour efficiency shall be determined for the test conditions.
Where accessibie, the electrolyte specific gravity shall be measured.
6.1.4 Reporting Requi r ements
The measured capacity and ampere-hour efficiency shall be reported for each temperature and discharge rate combination.
The final discharge and charge voltages shall be reported for any case that differs from those in Tables 1 and 2 (where applicable) .
Where specific gravities have been measured these shall be noted.If any of these data are presented in graphical form, the points actually determined on a given curve shall be noted.
Notes :
(l) This is not a mandatory part of this Standard.
(2) The fo1 lowing cycle test is proposed as a reasonable approach to ranking the performance of two or more batteries intended for photovoltaic applications in Canada. Should the C/10 rate be found to be too severe a condition, ad justment to a less severe charge and ai scharge rate would be appropriate.
For reasons of standardization, the charge/discharge schedule is not to be justed.
(3) This Appendix is not intended to be included as part of any tender for the supply of storage batteries. It is included here for information purposes and may be subject to change or deletion in future edi tions.
*For the test to be valid, batteries should be tested at charge and discharge rates that result in failure between the 5th and l0th cycles.CAN CSA F382-M89 pdf download.