B11.4.5 Battery packs based on Lithium Chemistry other than LiFePo:
a. must be commercially manufactured items
b. must have over voltage, under voltage, short circuit and over temperature cell protection
B11.4.6 All batteries using chemistry other than lead acid must be presented at technical inspection with markings identifying it for comparison to a datasheet or other documentation proving the pack and supporting electronics meet all rules requirements
Does the protection circuit stated in B11.4.5b need to be commercially manufactured? or can it be student made? does this rule imply that the protection circuit for the HV battery packs also need to be commercially manufactured?