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Bill

Member Since: 18 Nov 2017
Location: Essex / Normandy
Posts: 1276

Generator sets on standby

I bought a small 10kva diesel generator set about twenty years ago , just in case the lights went out as we live down the end of a long lane .

As it happens I have only ever used it three or four times

It’s key start , so if I want to use it I will need a new battery. However just leaving it hanging around will do the new battery no good whatsoever .\
I’m thinking of getting the battery and just not connecting it to the genset until needed.

So….. how do I look after the battery in between? Filters are in fact so good that in certain circumstances, when the ambient air is already polluted, a diesel car will tend to extract more particles from the air than it emits. Emissions Analytics worked with........etc etc

He who dies with the most toys wins...

28th Jun 2025 3:57pm

Waylander11

Member Since: 06 Nov 2019
Location: Leicestershire
Posts: 22

How about using a small suitcase solar charger

28th Jun 2025 9:02pm

Bardley

Member Since: 01 Jan 2025
Location: Hertfordshire
Posts: 22

2014 Range Rover Autobiography SDV8 Corris Grey

Click image to enlarge

You could leave the battery connected and just use a battery monitor like an Optimate.
I've a few motorcycles connected permanently, and these units have an active circuit monitor that charges when needed.
There are other manufacturers, but I've ended up with Optimate.

Fit a lead to the battery. Plug in to the battery monitor, and just leave it doing its thing.
https://www.optimate.co.uk/battery-chargers/optimate-1-duo/

Click image to enlarge

https://files.optimate.co.uk/manuals/OptiM...Manual.pdf

The other cheaper options do a good job, and I think Lidl have one on the shelf at the moment.
A company called Topdon have a unit that is also good value. L405 2014 FFRR Autobiography
Corris Grey
Previously 2011 D4 SDV6 HSE Santorini

29th Jun 2025 8:00am

dhallworth

Member Since: 10 Oct 2011
Location: Glasgow
Posts: 3310

2012 Range Rover Autobiography TDV8 Baltic Blue

We've got a big standby generator here. It's a 24v set up and needs 2 x 12v batteries to get it going.

The batteries on ours have been on it for years now, they are permanently connected to a conditioner/charger and have never given us any issues on the rare occasions that we've needed it to start. I'd go as far as saying that the batteries must be getting on for 15 years old now, maybe slightly more as it was around 2007 the generator went in.

2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2012 Range Rover 5.0 SC Autobiography in Indus Silver with Jet/Ivory Interior
2012 Range Rover 4.4 TDV8 Autobiography in Baltic Blue with Sand Interior
2013 Range Rover Sport SDV6 HSE Black Edition in Santorini Black with Ebony Interior

29th Jun 2025 11:27am

Bill

Member Since: 18 Nov 2017
Location: Essex / Normandy
Posts: 1276

Thanks very much. Bardley. DH & waylander. Filters are in fact so good that in certain circumstances, when the ambient air is already polluted, a diesel car will tend to extract more particles from the air than it emits. Emissions Analytics worked with........etc etc

He who dies with the most toys wins...

30th Jun 2025 3:43pm

Bill

Member Since: 18 Nov 2017
Location: Essex / Normandy
Posts: 1276

Thanks Bardley… just bought one… Fleabay special offer Filters are in fact so good that in certain circumstances, when the ambient air is already polluted, a diesel car will tend to extract more particles from the air than it emits. Emissions Analytics worked with........etc etc

He who dies with the most toys wins...

1st Jul 2025 12:09pm

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