USCG Exam PracticeBatteries and storage systems
Under 46 CFR §111.15-3(b), under what condition may a battery installation's category be reduced to an equivalent lower category of lead-acid batteries?
- A. When the battery charger output is reduced below the threshold for the higher category
- ✓ When the batteries generate less hydrogen under normal charging and discharging conditions than an equivalent category of lead-acid batteriesCorrect
- C. When the battery installation is located in a dedicated battery room with Class I, Division 1 electrical equipment
- D. When the battery cells do not spill electrolyte when inclined at 40 degrees from the vertical
Why B is correct
46 CFR §111.15-3(b) allows a battery installation's category to be reduced when the batteries generate less hydrogen under normal charging and discharging conditions than an equivalent category of lead-acid batteries, citing sealed batteries as an example. The other options reflect real regulatory requirements but are not the basis for category reduction.
Cited:46 CFR §111.15-3