Battery Brain

[Argent]

Hi All

Can anyone recommend a battery brain they’ve fitted? Not using the Griff quite so much in lockdown!

A

[R8FUN]

Argent said:

Hi All

Can anyone recommend a battery brain they’ve fitted? Not using the Griff quite so much in lockdown!

A

I have never heard the phrase Battery Brain?

I have a CTEK XS3.8 Battery Conditioner (trickle charger) for my Griff.
I have it wall mounted in the Garage & hard wired into the boot.

First job I did when I bought the car.

[Hedgehopper]

R8FUN said:

I have it wall mounted in the Garage & hard wired into the boot.

You must do quite short journeys then....

[Argent]

Thanks for the reply but I thinking more of a battery isolation switch that can be activated by a key fob. With a bit of research found something at www.batterybrain.co.uk and other cheaper options on fleabay.


A

[darojac]

I’ve got one on my Griffith, mainly to protect the twin Redtops I have on mine - you’re probably aware that these batteries are knackered if allowed to discharge. The batterybrain disconnects below 11.8v. Also allows me to lock the car then disconnect the batteries remotely when laid up in winter.

[David Beer]

On my defender I have a solar panel, plumbed in permanently, just pop it on the dash when not using the car. Not failed to start in 7 years and if the car goes out once a month, it’s excessive use ! Longest left in the winter around 4 months, no problems. Ok if it were in a garage, plan b.
Cost twenty quid.

[900T-R]

David Beer said:

On my defender I have a solar panel, plumbed in permanently, just pop it on the dash when not using the car. Not failed to start in 7 years and if the car goes out once a month, it’s excessive use ! Longest left in the winter around 4 months, no problems. Ok if it were in a garage, plan b.
Cost twenty quid.

Not much use if your car lives in a garage or an underground car park, though?

The trouble with Battery Brains is their bulk - put them on the positive battery as intended and they effectively make the battery like 4" wider. Even with a much smaller battery you don't really get them tucked up nice in the battery box without some cutting and then still the + cable run will be a bit of a mare.

[Penelope Stopit]

Argent said:

Thanks for the reply but I thinking more of a battery isolation switch that can be activated by a key fob. With a bit of research found something at www.batterybrain.co.uk and other cheaper options on fleabay.


A

Would be wanting to know the lowest voltage/battery condition required to start the engine on a cold day before ordering

Voltage setting is carried out by the supplier

Something wrong with a master switch?

[David Beer]

900T-R said:

Not much use if your car lives in a garage or an underground car park, though?

The trouble with Battery Brains is their bulk - put them on the positive battery as intended and they effectively make the battery like 4" wider. Even with a much smaller battery you don't really get them tucked up nice in the battery box without some cutting and then still the + cable run will be a bit of a mare.

I did say no good if in a garage. Well actually go to plan b .

[ToneyCaroney]

I had one fitted to my Griff. Great device if you get the one with the remote key fob. It’s true that you’ll need to fiddle about a bit to get it to fit in the battery compartment but (at least with my car) it was possible without having to mod anything. Thoroughly recommend it if it’s not practicable to leave attached to a battery conditioner.

[Argent]

Penelope Stopit said:

Would be wanting to know the lowest voltage/battery condition required to start the engine on a cold day before ordering

Voltage setting is carried out by the supplier

Something wrong with a master switch?

Appreciate that P S but I’m looking for a remotely controlled device for long periods of standing like the present

[Penelope Stopit]

Argent said:

Penelope Stopit said:

Would be wanting to know the lowest voltage/battery condition required to start the engine on a cold day before ordering

Voltage setting is carried out by the supplier

Something wrong with a master switch?

Appreciate that P S but I’m looking for a remotely controlled device for long periods of standing like the present

Understood

Is there anything stopping you from finding out what circuit/circuits are constantly draining the battery, fixing any faults found that are

causing those circuits to draw current when they shouldn't be and wiring in a switch to remove supplies from the radio and other

circuits that should be constantly drawing current of which there should be few?

[Argent]

Penelope Stopit said:

Argent said:

Penelope Stopit said:

Would be wanting to know the lowest voltage/battery condition required to start the engine on a cold day before ordering

Voltage setting is carried out by the supplier

Something wrong with a master switch?

Appreciate that P S but I’m looking for a remotely controlled device for long periods of standing like the present

Understood

Is there anything stopping you from finding out what circuit/circuits are constantly draining the battery, fixing any faults found that are

causing those circuits to draw current when they shouldn't be and wiring in a switch to remove supplies from the radio and other

circuits that should be constantly drawing current of which there should be few?

Fair enough, so what are the typical parasitic drain culprits and other then the alarm/immobiliser and radio memory what else can I expect to legitimately draw current?

[Loubaruch]

The interior light control relay ( the yellow one on the fuse/relay panel) is a known culprit for leaking current when it ages. It is not just a relay but contains a few semiconductors etc.

When asking "Stopit" questions on here be aware that he does not have a TVR so his reply may not be accurate or helpful.