Thursday, 21 March 2019

Buying loppers


The ivy on the shed has got beyond a joke, to the point where it is almost structural now. Time to get cracking, err hacking.

Spot the shed!
No better on the other side!

And so we did, I roped in the tykes as lump labour. But secateurs can only get you so far and sawing back the ivy branches was a major pain in the posterior. Time to up the duty level and get something with more grunt, ie bigger secateurs, aka loppers.

Generic loppers

Apparently there are two sorts, anvil and bypass. The latter is for gentler, precision pruning of things you want to keep, ie not the ivy. The former has more grunt but leaves a messier edge and can cause more damage to the green thing you are applying it to, which sounds like just the job.

So time for a bit of tool shopping, what a drag….

There is a wide choice of types of mechanism on the market with a range of prices from dirt-cheap Chinese brands to stupidly expensive (and I assume sharp) Japanese ones. Too much choice really for a novice like me. The first decision to be made is whether to buy cheap or get something that will see out a few seasons.

A pair of cheap Chinese loppers can be had for £12-15 from eBay, and if I thought that clearing the ivy would be a one off job then they would do. However as the ivy is likely to fight back and there are also other woody plants in the garden that will need attention over time, I will make a branded name purchase.

As I am not going to fork out for multiple pairs of loppers I want the pair I do buy to be able to handle as broad a range of tasks as possible. That will mean the capability to handle thick branches and telescopic handles to increase the range of situations that they can be used in. There's no need for them to be lightweight as A) I won't be using them all day and B) I should be able to handle the weight. Finally, I am agnostic on the cutting mechanism apart from the fact that simpler is better (less likely to break).

Getting hold of a decent review proved more of a challenge than I thought it would be. There were a lot of the 'top 5' type, with monetised links off to Amazon and lots of pictures of factory fresh tools that had never been used in anger. The most useful I found were from Gardening Products Review and Fred-in-the-shed. Fred basically sold me on the Wolf-Garten loppers, if they can last 10 years use and still get a recommendation then they will be OK for me.

Wolf-Garten sell 3 different models of anvil loppers. The pair with largest cutting range and telescopic handles looked like the ones for me (model RS900T). They are pricey at £90, but Mr. Amazon will give you them for £50. Decision made.

Wolf-GARTEB RS900T Telescopic Anvil Loppers

Attack!

Post-cutting
Nice sharp, fresh cuts

Have used them for a few sorties on the ivy so far and they have worked no bother, smooth cutting action and, as ivy is not very dense at all, capable of cutting anything that I can get the jaws around. Process is now to fill up the green waste bin with ivy cuttings every two weeks, we are 12 weeks in and not much of a dent made.

Time taken: About half a day to do the research and spec the loppers
Cost: £49.99 (inc p&p)

Thursday, 17 January 2019

Energizer Universal Battery Charger repair


Groan, the dishwasher is broken again. Out with the multimeter.
Groan, the multimeter's rechargeable battery is flat. To the battery charger.
Groan, also not working.

Sometimes you end more steps back than forward.

Q. How do you sort out what is wrong with your battery charger when the battery in your multimeter has gone flat?
A. Buy a spare alkaline battery.

Well off to see Mr. Tesco for a quick fix,

Multimeter back into operation

Now the multimeter is working, but the battery charger (and dishwasher) are still broken.

First things first, is the charger getting juice from the power supply unit (PSU)? It should be outputting 12 V DC, but is actually supplying 0 V. Culprit identified.

After popping the cover off the PSU and giving it the once over there are no obvious shorts or burnt out components. So no easy fix for this.

Battery charger PSU internals

The part # for the Energizer Switching Mode Power Supply is CHEUF-ADP-UK. I don't have any experience with switched mode power supplies, but apparently they are popular as they are small, lightweight (in terms of transformer size) and power efficient. The circuitry in the Battery Charger PSU includes a mix of discrete through hole and surface mount components. As I am not sure how the circuit is laid out or which of the components is faulty, troubleshooting is not likely to be a quick or painless option. So time to think of some other routes to getting the charger functional again.

The first option is to replace the PSU in its entirety, not very green I grant you but better than chucking the whole charger and replacing (you would think).

But not if you want an Energizer PSU. For a start Energizer don't sell them,
Thanks for contacting ENERGIZER.
Unfortunately, we do not sell spare parts.

We remain at your disposal,
Thanks
Kind regards

Energizer consumer service
which is not the epitome of responsible corporate stewardship. Or in their words "we believe everyone has the power to make a positive impact", aka " we believe everyone can buy into our corporate greenwashing, while we can't be bothered to ship out replacement PSUs even though it would be a stupidly easy thing to do, just throw your charger in the bin and buy a new one like a good consumer, screw the planet. " At least they ponied up the information quickly though.

The on-line sources were not attractive [Amazon - unavailable, eBay (used) - £12.95, on-line search - £17.00], which are almost as much as buying a brand-new charger [£17 vs £20], which on point of principle I am now refusing to do.

The next option is to buy an OEM wall wart with the same rating, much more reasonable at £3.88 arriving on a slow boat from China. A cynic would note how it looks almost identical to the Energzier one. However it is still remotely possible that I could fix the original unit which would then leave me with two. Not that that would be a major issue.

OEM charger PSU

Thinking about using an OEM PSU lead me to realise I hadn't been through the parts bin. Happily a search through the bin yielded a PSU from a long since deceased scanner which is 12 V/1.0 A rated. A bit higher than the 12 V/0.6 A of the original charger but available immediately at £0.00.

Sounds OK, but the DC power plugs are not the same, grr. Both are 5.5 mm OD, but the spare is 2.1 mm rather than 2.5 mm ID so won't fit the charger.

Different internal bores of DC power plugs

Back on-line for more searching to find a DC power adaptor for £1 off eBay.

Battery Charger fix complete



Wait a month for the slow boat from China to arrive.



Unpack and plug in replacement charger. No issues, but won't leave on unattended for a while just in case.

JOB DONE

Time taken : 5min to put in new plug, 2 hr to work out what was needed, 30 days to receive part.
Cost : £0.99