We've used the strimmer and the hedgecutters. Hedgecutting did give a full working day. BUT, climbing ladders to do tops of hedges etc is awful with the lead attaching hedgecutter to battery pack - I'd go as far as saying it can be dangerous. And I'd imagine in trees with the chainsaw it could also be dangerous. There's just too much to get snagged and stuck.
Also not happy with the amount of plastic - the stupid plastic ratchet for altering hedgecutter angle just won't last. The strimmer, though, is a bit of a joke, as is the blower. And the prices are prohibitive. There's a firm not a million miles from me who bought the Pellenc stuff to help them get a contract working around some schools.... but they go in and work with their petrol stuff when the school is shut - much better idea.
As for "no downtime"..... well, there is plenty of potential for downtime with battery packs and electronic circuitry. The dealer told us that the battery packs contain a control unit that shuts down if faults detected or it overheats, and the manufacturer can then read the fault codes. Now, we all know what vehicles can be like when ECUs cock up or something goes wrong...
Regardless, we almost bought a couple of battery packs and hedgecutters (long and standard) a few months ago at something like £4k, then the company selling them told us that the price didn't include VAT! As it is, we can get a couple of hedgecutters for a third of that, leaving £3k for fuel. That's something like 1800 litres of mix, or 5400 Sithl tank fulls of fuel, split between two hedgecutters. To make it worthwhile even considering the Pellenc, then the prices have got to come down drastically or there has to be a particular job in mind that requires the use of more inconvenient but quieter equipment. Or you need to get hold of one of the green grants, which is possibly what Pellenc are hoping people do so that they can keep their price nice and high.