Battery in trunk

[usakubko]

What are the requirements on having the battery in the trunk if that's the stock location? (besides having it bolted down)

[ncaruso]

not sure what u mean "if thats the stock loction"

[usakubko]

Factory stock location of the battery is in the trunk behind the seats. Does it have to be in some kind of enclosure? Does the battery need to have a venting system (not sure of the proper term)?

[arniecoleman]

If the trunk (or wherever) is the stock location for the battery, then it's legal in stock class. It must also have a stock/OEM or other "suitable" aftermarket tiedown whose intended and sole purpose it to act as a battery tiedown (no bungie cord, duct tape, coat hanger wire or superchargers). I didn't have time to look in the rulebook to be completely accurate, but special container/venting requirements usually apply when the batery is moved (legally) from its stock location to another location, especially when that location is inside the pasenger compartment.
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[Tom Hunsinger]

15) Any wet-cell battery moved from the manufacturer’s original
location shall be in a non-conductive marine-type container or
equivalent, and the hot terminal shall be insulated. All batteries
(on-board power supplies) shall be attached securely to the
frame or chassis structure independent of the marine-type
container. NOTE: This will allow the use of gel cell or dry
cell (AGM) batteries without a non-conductive marine-type
container where applicable.

It doesn't matter if it is in the trunk or in the car; you gotta have a marine container (the Air Force kind don't work). :D

[Matt Leicester]

Typically, the only trunk mounted batteries from a manufacturer are AGM batteries, or have external venting such as a vent hose. Anything modern does not use a wet cell in the passenger compartment or trunk, so the marine type box on an OEM trunk mounted battery should not be required.

Matt Leicester

[Tom Hunsinger]

As a Miata driver (battery in trunk) I should have read the first post instead of glancing at it :o I thought he was talking of moving the battery to the trunk from the stock location. Pardon me while I crawl in the trunk to keep my battery warm.