Recharge EFB battery

larbel

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my battery is a little on the low side and not really sure if it should be replaced since it's only 2 years old. Is it ok to recharge EFB battery? Varta seems to say no but the shops here say they do it all the time...

If recharge, any special procedure need to be done when installing the battery back? Thx!
 
Surely you recharge your EFB battery every day, unless you've removed your altenator ;)
 
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Yea, but I don't drive it enough and wondering if it can be removed and recharged on a battery charger...
 
http://www.yuasa.co.uk/info/technical/agm-efb-explained/
The EFB battery is an upgraded version of a normal lead acid battery and just uses slightly different materials and construction to get better performance. You can charge them as you would a normal car battery.
The CTEK automatic chargers are very good and will charge any kind of battery.
http://www.autoexpress.co.uk/accessories-tyres/36236/battery-chargers-tested

http://amzn.eu/9EagEsQ

There are many other cheaper intelligent top up chargers available as well

http://amzn.eu/ae2tFCE
 
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How many miles have you done? I would think that even pretty moderate use would keep the battery charged up.
 
How many miles have you done? I would think that even pretty moderate use would keep the battery charged up.

I'm in Hong Kong and mostly short trips (less than 30 mins drive) and i don't drive everyday... :(
 
CTEK's CT5 charger is specifically designed for Start/Stop EFB batteries, but it's not cheap... They do have an excellent reputation however.
 
Don't connect the charger direct to the battery - use the jump/charging earth point provided.

This ensures that your charge can be seen by the battery management computer, and will avoid the computer being confused and incorrectly charging the battery next time you drive the car.
 
I have 5 CTEK chargers for various machines, very good pieces of kit.
If you don't have power some manufacturers now come with solar capability plugged in via the cigarette lighter, if you don't use the car a lot turn the start stop off when you do as it can have a big drain (my wife's Nissan had its battery replaced after 2 years due to issues with its start stop 'technology'). On an unused machine anything less than around 12.5volts suggests a charge is needed.