latest thoughts on batteries?

[David 68T]

Thanks Rich.

Will probably do the same when the 6 year old battery in the 911T gives up.

[reedminor]

So, just a quick follow-up… bought new battery, but due to life factors haven’t managed to install it yet (so it’s sitting on the c-tek trickle charger on the garage floor).

yup, so if the trickle charger is keeping the new battery maintained… what’s keeping the battery in the car up to scratch? Yeah, nothin’!!

the voltage meter i have stuck in the cigarette lighter showed a paltry 8V this evening… nothing like enough to get the 911 rumbling. Which is where my latest birthday present actually came to the rescue - a second-hand-off-ebay iTECH2000A lithium jump starter.

https://itechworld.com.au/collections/jump-starters/products/itech2000a-portable-jump-starter-backup-qi-wireless-power-bank

Car started really easily - no idea how many times a unit like that could jump start my car, but pretty small unit to keep on hand even if it only did it a couple of times before needing a recharge.

Will update once the new battery is installed…

I got something similar to that before going to Tassie.

I havent had to use it yet - but liked the piece of mind it brought if the battery gavce up the ghost somewhere remote.

JR

[griffiths_r]

Ok, slight challenge with installation... Battery strap is way too long for for the smaller battery.

Any ideas on how to shorten, or alternative ways of strapping the battery down?

[Nicko]

Hi Richard
Just wondering if you could tie a knot in the rubber strap to shorten it.It might work and the knot could be concealed on one end.
Best Regards
Nick

[griffiths_r]

Hi Richard
Just wondering if you could tie a knot in the rubber strap to shorten it.It might work and the knot could be concealed on one end.
Best Regards
Nick

hmmm... Rubber? Mine's a metal strap.

[Nicko]

Sorry I thought you were referring to the rubber strap that goes over the plastic battery cover.
What strap are you meaning?

[Terminator]

Ok, slight challenge with installation... Battery strap is way too long for for the smaller battery.

Any ideas on how to shorten, or alternative ways of strapping the battery down?

Need a pic to see what you have

[HughH]

Nick
earlier cars have that plastic battery cover and the rubber strap later cars like rich's or my 73 have battery boxes cut into the wheel wells with the battery normally jammed in there and held tight with a metal strap
so it depend on which year you are talking about
you can see the black metal strap in this photo as well as how tight the "normal" batteries are 1B95725A-0A65-4128-A2C5-1104BA428C4A.jpg

Note it is a USA car with the extra pollution rubbish in front of the battery

and for completeness here is an early (68 and earlier) battery and plastic cover with the rubber strap. In these cars the batter was in a tray in the front LHS of the car

Ahearn_orange.jpg

[griffiths_r]

Thanks Hugh... Yep, metal strap holding the battery down. As per your pic (which is very neat compared to my spaghetti mess of wires).

Aiming for safe and working, whilst I sort some of the shonky wiring out...

[Nicko]

Ahhhh. Thank you for the photos Hugh.
I should have looked at my Restourers guide to Authenticity 2.
The best option would be to place a spacer possibly made from timber or something non conductive(paint it black)to make up the gap.
I would not try to modify your metal bracket

[griffiths_r]

The best option would be to place a spacer possibly made from timber or something non conductive(paint it black)to make up the gap.

that's actually not a bad idea - might look a bit ridiculous, but so does the wiring at the moment... and it'll get it running again whilst i sort out a longer term solution.

[mrar]

This works in my 72 hot rod Richard.
Even passes scrutineers at the track.
20211128_083234.jpg

[HughH]

I went the other way and bought two new Bosch batteries of the correct size ($374 for two) which is not bad since the last ones were bought in Jan 2015
IMG_1455.jpg

[griffiths_r]

So, here's where I have got to... Unfortunately nothing is perfect, but the car runs again.

Haven't worked out what all the wires are for yet - lots of connections to the positive terminal which I don't think can be right...

And now I'm missing a positive lead to the washer pump

Plus need to secure the battery (which doesn't protrude outside the box) and protect the exposed terminals...

Oh, i have wired in the ctek... Also not finished nicely yet either. But hopefully this battery will get regular trickle charging as a result!

[griffiths_r]

Oh, I already know the earth cable is rude... It's all I could find at supercrap auto....