Thanks djh;
I had a look at the Landroid; not suitable for my needs but it led me to WORX family of products esp. the 40V Nitro 46 cm brushless self-propelled cordless lawn mower - with batteries and charger, WG749E.
At £450 it compares favourably with others in that class. I'm slowly putting together a shortlist.

My commercial grade Kubota is akin to Tom Fosters Lawnflite, also 6HP. but experience with Kubota spares tells me the rotted out grass chute deflector plate is going to cost a fortune, even if it's still available.

Posted By: owlman

"I considered an 18-20 inch petrol but I've also been looking at cordless and in particular Ego mowers, does anyone have any experience? "

I have had Ego tools for three years and have not had any problems. I have a self propelled 47cm lawn mower which I use with a 5AH battery. I also have a 2.5AH battery that I tend to use with the other tools. The prices seem to have gone up quite a bit over the last three years.

I just found out that Worx are now selling Landroid Vision models I might look at those in the future. Luba are another interesting brand, but they're RTK.

Real-time kinematic positioning (RTK) is the application of surveying to correct for common errors in current satellite navigation (GNSS) systems.

I had to Google it.

What does RTK stand for?
Your abbreviation search returned 17 meanings
Meaning
RTK Radio Television of Kosovo (Albanian: Radio Televizioni i Kosoves)
RTK Romance of the Three Kingdoms (novel/game)
RTK Right To Know
RTK Receptor Tyrosine Kinase
RTK Real-Time Kinematic Positioning (satellite navigation)
RTK Reason to Kill (gaming)
RTK Radio Television of Kosova
RTK Record Test Kit
RTK Robotic Technology Kernel (Tank and Automotive Research, Development and Engineering)
RTK Raiffeisen Tours Kooperation (German: Raiffeisen Tours Cooperation)
RTK Round Table Knights
RTK Real-Time Kernel
RTK Reclaim the Kop (fan club)
[and some more that are a bit rude for GBF!]

Posted By: Dominic CooneyReal-time kinematic positioning (RTK) is the application of surveying to correct for common errors in current satellite navigation (GNSS) systems.

I had to Google it.

Otherwise known as differential GPS. There's a GPS receiver at a fixed position that is used together with the mobile one to give better accuracy.

Think those lids are spring loaded so that there's no possible line-of-fire from the spinning blade? Stones getting thrown out, that kind of thing?

<blockquote><cite>Posted By: fostertom</cite>'grass chute deflector plate' - is that a device to shoot the grass out the side instead of into the bag?


No, This deflector is a shaped metal plate attached to the underside of the alloy deck. This directs the clippings upwards into the collector bag. These pro machines are built like tanks with a thick cast alloy deck on to which all the other bits are bolted and can be replaced; if still available.

NB A previous Honda machine of mine had a curved metal deflector/ chute that was simply fitted in place of the bag to deflect clipping sideways. Most old, quality machines had such a chute as an accessory; probably banned by health and safety nowadays.

https://www.mowdirect.co.uk/lawnflite-pro-rear-deflector-for-lawnflite-pro-rear-collect-lawnmowers-71901-924.html

Posted By: fostertomInteresting accessory - I never knew.

Auction sites often have them, or mower service centres may have one kicking around.