---
kind: "section"
citation: "46 C.F.R. § 129.353"
title: "46"
number: "129.353"
heading: "Battery categories."
url: "https://uscodex.org/cfr/46/129.353"
---

# §129.353. Battery categories.


This section applies to batteries installed to meet the requirements of [§ 129.310(a)](/cfr/46/129.310.md?p=a) for secondary sources of power to vital loads.

- (a) **Large.** A large battery-installation is one connected to a battery charger having an output of more than 2 kW, computed from the highest possible charging current and rated voltage of the battery installed.
- (b) **Small.** A small battery-installation is one connected to a battery charger having an output of 2 kW or less, computed from the highest possible charging current and rated voltage of the battery installed.

## Notes

### Authority

Authority: 46 U.S.C. 3306; sec. 617, Pub. L. 111-281, 124 Stat. 2905; Department of Homeland Security Delegation No. 0170.1.

### Source

Source: CGD 82-004 and CGD 86-074, 62 FR 49332, Sept. 19, 1997, unless otherwise noted.