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Anyone recommend a battery charger/maintainer?

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SirFallalot
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Joined: 25 Oct 2018
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PostPosted: 17:56 - 03 Aug 2021    Post subject: Anyone recommend a battery charger/maintainer? Reply with quote

Been meaning to get one for just leaving plugged between the bikes when I don't ride them and charging, but couldn't be arsed to spend the money, so I just usually borrow the neighbours when needed.

Looking between Optimiser 3-4, Ctek MXS 5.0 Noco Genius 5, all round the £60 mark, the cheaper ones seem to be very low amperage.

There's cheaper, but are they any good? Reviews are always a mixed bag... Anyone recommend anything?
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Fisty
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PostPosted: 19:00 - 03 Aug 2021    Post subject: Reply with quote

been using the noko for 5 years, has been great.
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Islander
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PostPosted: 19:36 - 03 Aug 2021    Post subject: Reply with quote

They're all good. I've got 2 optimates that I've had for years and they've never misses a beat. Thumbs Up
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slowasyoulike
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PostPosted: 22:33 - 04 Aug 2021    Post subject: Reply with quote

I have a positively ancient-looking Optimate 4 that was stuffed under the seat of a piss-poor Chinese scooter I got given*. I've had it for a good few years now, and it does the job very well.

* Free Optimate & Chinese shitter weighed in for £30 = Result Thumbs Up
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Polarbear
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PostPosted: 23:25 - 04 Aug 2021    Post subject: Reply with quote

I've had an optimate for donkeys years. It's still going strong.
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arry
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PostPosted: 07:42 - 05 Aug 2021    Post subject: Reply with quote

Polarbear wrote:
I've had an optimate for donkeys years. It's still going strong.


Ditto this. The CTEK is a bit beefier for car battery use too, though.
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jimster
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PostPosted: 19:11 - 13 Aug 2021    Post subject: Reply with quote

Lidls and Aldis have these for about £10-15 from time to time, I have 2 and they work great. The Range also has a £10 dumb charger that's useful as a starter if the smarty charger decides the voltage is too low to be safe to charge.
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arry
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PostPosted: 20:05 - 13 Aug 2021    Post subject: Reply with quote

jimster wrote:
Lidls and Aldis have these for about £10-15 from time to time, I have 2 and they work great.


They work great for the money and as a maintenance charger, but they're not a great actual charger if that makes sense.

They won't recover a battery that's dropped significantly - it'll just give an ERR. The proper ones will bring just about anything back from the dead (how long for, of course, is another story).
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MCN
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PostPosted: 20:52 - 13 Aug 2021    Post subject: Reply with quote

C-Tek.
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Fizzer Thou
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PostPosted: 23:29 - 13 Aug 2021    Post subject: Reply with quote

There is a good list here

https://www.tayna.co.uk/battery-chargers/optimate/

I have also owned a number of Optimates but most recently I bought an Optimate 1 DUO because I now use a lithium battery on the KTM,but it can also be used on the other bikes as well.

https://www.tayna.co.uk/battery-chargers/optimate/optimate-1/

Good value for the money if you are not out for anything flash Thumbs Up Cool Thumbs Up
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jimster
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PostPosted: 00:41 - 14 Aug 2021    Post subject: Reply with quote

arry wrote:
jimster wrote:
Lidls and Aldis have these for about £10-15 from time to time, I have 2 and they work great.


They work great for the money and as a maintenance charger, but they're not a great actual charger if that makes sense.

They won't recover a battery that's dropped significantly - it'll just give an ERR. The proper ones will bring just about anything back from the dead (how long for, of course, is another story).


Actually the Lidls/Aldi ones will charge from anything above about 7.5v (at which point the battery is defunct anyway unless you're going to start replacing the lead and other dangerous things like that).

But I also have a dumb charger that will try to charge anything below 7.5v just in case my battery falls below 7.5v and I'm feeling lucky and don't mind the possibility of a small thermonuclear battery explosion in my garage.

Lidls do also have one for slightly more money (£30?) that does do a full deep recycle and also will even jump start your car directly from the mains and various other fancy bobbins. I saw it in Germany last summer so maybe they didn't sell in the UK, but it looked like this: https://www.youtube.com/watch?v=By_9AgV7SBA

Save your money and avoid the more expensive models is my view!
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Last edited by jimster on 02:41 - 21 Aug 2021; edited 1 time in total
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photoman
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PostPosted: 07:44 - 14 Aug 2021    Post subject: Chargers Reply with quote

+1 for optimate, thoroughly reliable and robust.
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arry
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PostPosted: 09:48 - 14 Aug 2021    Post subject: Reply with quote

jimster wrote:


Actually the Lidls/Aldi ones will charge from anything above about 7.5v


Mine doesn't - nowhere near it. I've had it ERR on batteries that are still on my car / bikes.
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jimster
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PostPosted: 11:14 - 14 Aug 2021    Post subject: Reply with quote

arry wrote:
jimster wrote:


Actually the Lidls/Aldi ones will charge from anything above about 7.5v


Mine doesn't - nowhere near it. I've had it ERR on batteries that are still on my car / bikes.


Here is a video of one of the recent Lidls brands pulse recharging @ 7.5v.

https://www.youtube.com/watch?v=o1JIDYBmP7k

If yours can't do this then it must be from quite a few years old - I do have a 2006 Lidls charger (that still works) that refuses to initiate @ less than about 10v, but as I say the last few years have all had the ability to go from 7.5v (same as the Optimate so far as I'm aware) and a battery @ 7.5v almost always needs replacing anyway so the ability to charge at that level is just a complete waste of time and a marketing willy-waving exercise.
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jimster
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PostPosted: 11:31 - 14 Aug 2021    Post subject: Reply with quote

Also (for anyone else reading this thread) this is the REAL way to restore a sulfated deeply-discharged battery: https://www.youtube.com/watch?v=6x-JfckAt20
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arry
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PostPosted: 12:10 - 14 Aug 2021    Post subject: Reply with quote

Interesting. Mine is a Lidl special CTEK clone and definitely doesn't do hugely discharged batteries.

I had to disconnect my Optimate from the bike and find the crock clips but it managed what the Lidl one couldn't. The battery is still in service.
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