Battery tie-down question.


#1

Anyone know if the battery tie-down has to be of "solid", IE: metal material? OR can it simply be a webbing type strap that goes around the battery tray and battery (much like in a boat with a battery box and strap)? With the right strap I think it would be strong enough - but not fireproof.


#2

I don’t know if this fully addresses the issue, but I would not use a strap.

11.4.9 Battery

The battery shall be securely fastened to the car. No Bungee cords or rubber cords may be used to function as the sole hold down mechanism. An electrically non-conductive material must cover the positive battery terminal. Any battery located inside…


#3

I’d shy away from any sort of organic strap tie down. Organic materials and sulphuric acid are not compatible and the strap can weaken with no visible signs of damage. Under high G loading the battery can come loose when the strap fails. I’ll leave it as an excercise to the reader to figure out why I would say this.


#4

Mine is bolted to the trunk floor and harnessed with a nylon ratchet strap. I might put it back in the side pocket later if I need to run a spare tire which is probable based on my weight. If that’s the case I’ll put it back in the side pocket with stock tie downs and use a ratchet strap again for redundancy.

I remember back in the day at autoxes when I had to tech cars, it was amazing how many cars didn’t have tied down batteries.


#5

I figured it out: Got to 12" pieces of 1/4 x 20 threaded rod, pulled battery pan out, drilled 2 holes in bottom of car, mounted the rods with 2 nyloc nuts and a washer on each (pinching bottom of battery pit, drilled 2 holes in plastic tray and slid it onto the rods, cut and drilled a channal shaped piece of aluminum to go across battery and onto rods, and used 2 nuts to hold it down - no welding needed, which is nice since I don’t own for know how to use a welder anyway.:laugh: