A lot of large heavy saws have been recommended above. Personally I would stick to light 35cc for small trees and hedges. An electric saw might be OK for branches and hedges but not really for tree felling. You get 30 minutes max per battery with an electric saw.
Best advice so far.
Think wot size of branch log ur most likely to cut?
And how long do u regularly use it for when dowen the shoot?
Personally i dont think battery power is there yet in chainsaws, would be nothing worse than having just a couple more trees to do and batteries pack in.
Bad enough when u rum out of petrol and have to walk back to ur combi.
Also dont know how long batteries will hold there charge in the future yet
I'd imagine a 35cc- 40cc saw should be plenty, no need for expensive 50 and 60cc pro grade saws for wot ur doing.
I have a van full of pro grade saws from 50cc upwards, but for small stuff or shoot work i would bring out a small saw, far nicer to handle and a fill last longer, my wee ms231 does almost an hour on a fill
A saw of that size will run a 13-15" bar so thats u capable of cutting up to 30", and being honest a 30" stem is getting into a decent sized tree if u dont know wot ur doing it will hurt u or damage stuff,
Also windblow is actually the most dangerous thing to cut so sticking ur saw into a 30" butt can be very dangerous if u dont know ur tension and compression lus side bends/twists.
The seceret with any saw but esp small cc saws is keeping the chain sharp, bar dressed and looking after it ( not cutting soil stones etc) sounds obvious but some folk are terrible for hitting dirt
As for brands, id buy of a local company even if slightly dearer so u have the after sales back up.
I'd go with wot ever they advise, also look to echo, efco or mittox, ive hard the small cheap huskys are rubbish and just got the sticker on them.
A lot of local fencers all use small stihls 171s, 181s and they get some abuse but seem to last well.
The final thing depending how often u use it, but 2 stroke will go off after 1 month or so so dont mix too much if u dont use it regular, possibly even worse with the petrol change, either add a stabiliser and empty ursaw out and run it dry.
Or run it on aspen or similar can leave it in saw long term and it doesnt damage it