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Smart Battery Charger

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Smart Battery Charger

Posted by roger_johnson at August 13. 2017

This has probably been answered but can  a Smart Battery Charger be left permanently connected in the charge mode?

 

I have to go away for two weeks, will it cook my battery if left connected?

 

Many thanks Roger

Re: Smart Battery Charger

Posted by john_holmes at August 13. 2017

When I go away only the freezer and fridge are left on, everything else is off.

Re: Smart Battery Charger

Posted by robert_tuck at August 13. 2017

Previously john_holmes wrote:

When I go away only the freezer and fridge are left on, everything else is off.

Very wise, I also pull out aerial plugs from TV  as a lightning strike got one once.    Turning off the water at the mains can save the house, my neighbours shower burst in the night ,luckily  in the right place to do no damage!.  I always put charging mobiles on a dinner plate ,Chinese rubbish often goes up in smoke.

Re: Smart Battery Charger

Posted by john_evans1 at August 13. 2017

But the real answer is YES. They can left on indefinitely if you wish.

I have four of them. Two from lidl, one from oxford products and and accumate.

All work well and have givenno trouble in the many years I have used them to keep batteries charged on bikes which see little use.

I have even adapted the norton by fitting a charge lead.

The concerns raised by others are valid but remind me of Genny Penny being worried tgat the sky will fall down.  No offence meant gents,..

Re: Smart Battery Charger

Posted by Alan Osborn at August 20. 2017

Yes but, the one snag with these 'magic' chargers is if the battery is a bit poorly in the first place then putting it on such a charger often does not bring it back, but if quite a bit down then using a traditional charger often bring a battery back into life.

The magic chargers are good for keeping a good battery in good order.

Re: Smart Battery Charger

Posted by Dan Field at August 20. 2017

Previously Alan Osborn wrote:

Yes but, the one snag with these 'magic' chargers is if the battery is a bit poorly in the first place then putting it on such a charger often does not bring it back, but if quite a bit down then using a traditional charger often bring a battery back into life.

The magic chargers are good for keeping a good battery in good order.

 

Hi Al

i though some chargers had desulphate modes to do just that? I think my optimate does, or claims to anyway!

Dan

Re: Smart Battery Charger

Posted by ian_goodhall at August 20. 2017

Vehicle batteries aren't designed to be charged constantly or float charged. It will probably shorten their life.

Unless the battery is on it's last legs it will be fine for two weeks. Ever park your car at the airport for two weeks? It starts ok. Laughing

Ian

Re: Smart Battery Charger

Posted by Gordon Johnston at August 21. 2017

Having too many bikes, any not in current use have their batteries top-up charged every couple of months. The charger gives a green light after only a few minutes.

Re: Smart Battery Charger

Posted by Dan Field at August 21. 2017

Previously ian_goodhall wrote:

Vehicle batteries aren't designed to be charged constantly or float charged. It will probably shorten their life.

Unless the battery is on it's last legs it will be fine for two weeks. Ever park your car at the airport for two weeks? It starts ok. Laughing

Ian

 

Mine didnt! But then the battery I'd about 10 years old!

Re: Smart Battery Charger

Posted by George Phillips at August 21. 2017
Gordon - does a batter have to be in "current" use to remain charged? Hoho!

Re: Smart Battery Charger

Posted by George Phillips at August 21. 2017
Gordon - does a battery have to be in "current" use to remain charged? Hoho!

Re: Smart Battery Charger

Posted by Gordon Johnston at August 21. 2017

I will "resist" commenting further.

Re: Smart Battery Charger

Posted by Ian Easton at August 21. 2017

I take all the batteries from my bikes out and charge them periodically. I've noticed that the automatic chargers tend to boil of all the fluid. They've wrecked a few batteries that were in the bikes. That's why I take them out now so I can keep an eye on them.

Re: Smart Battery Charger

Posted by john_evans1 at August 21. 2017

As a matter of interest,what make of charger is boiling batteries? That is odd and seems to point to an issue with the battery or charge rate..i.e. Not cutting off when charged.

I have never had this problem with any of my smart chargers used on lead acid or Agm batteries but the old type chargers were notorious for this.

Re: Smart Battery Charger

Posted by Gordon Johnston at August 22. 2017

A Draper supposedly smart charger happily boiled a battery for me. Other makes have been absolutely fine.

Re: Smart Battery Charger

Posted by Ian Easton at August 22. 2017

Two different "Battery Tenders."

Re: Smart Battery Charger

Posted by john_evans1 at August 22. 2017

Right we now know draper is suspect. Maybe a blacklist of chargers which go bad?

 

I have two from lidle. No problem on car, tractor or bike. An accumate and an oxford again both work well.

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