Reply With QuoteIf you only bought the battery mid year, I wouln't worry about it. It is still in warranty, so hit them for a new one.
Master
SupporterIs there anything specific I should be looking out for when buying a battery charger for a calcium battery?
I've got a new Bosch S4 Calcium battery in July this year which has gone flat after leaving my car unattended for 5 or 6 weeks while I was away overseas.
Or, is it a bit odd that the battery should have gone flat after this time? There are a small number of low current devices in my Disco (alarm/imobiliser, clock, flashing light on the radio etc); might they have gradually drained the battery over a period of a few weeks?
The 'magic eye' thing is green so the fluid levels are supposed to be okay.
Thanks in advance!
2012 Discovery 4 SDV6 HSE
2003 Discovery 2 TD5
2003 Defender Xtreme
1997 Discovery V8i
AT REST
If you only bought the battery mid year, I wouln't worry about it. It is still in warranty, so hit them for a new one.
YarnMaster
Subscriber6 weeks is close to 1000 hrs.
1000 hrs @ just 50 milliamps is a drain of 50 amphrs.
Given that it's a starting battery and not a deep cycle, and depending on the capacity of the S4 battery you purchased, you may be just below threshold voltage req'd to start the disco... check the battery voltage with a meter.
there's a lot of advice on the web re, charging requirements for calcium batteries e.g.
http://www.bosch.com.au/content/lang...roch_Final.pdf
TopicToaster
Any charger will recharge the battery but may not bring it back up to 100% charge. The one I have takes the calcium battery up to 16 v during the Equalization phase whereas the other chemistries only get taken up to 14.7 V
So in answer to your question if you want to get the most out of your charger yes you will need to buy a charger that is made for calcium batteries.
Wizard
SubscriberI have a CTEK 25000 at work, and it will charge anything we have attached it to without issue. Has multiple modes for preheating battery, and different charge modes. Worth a look.
D4 2.7litre
Super Moderator & CA manager
SubscriberI agree with Admiral, we use heaps of CTEK chargers at work in some of our generators, and they are great. Will charge anything, and I've never had one fail.Originally Posted by ADMIRAL
Cheers - Gav.
_______________________________________
I'm not 40! I'm 18... with 22 years experience!
Swaggie
SubscriberYeah - another vote for the CTEK chargers. Not cheap -but they are excellent. They have a "Restore" feature to help rejuvenate old or very flat batteries, and they work on Calcium too.
OldBushie
If you only need it for now to get you going.....a new battery will probably be cheaper than a decent charger......
I would connect to a second vehicle via jumper leads and allow the second vehicle to run for about
10 mins before you try to crank yours.....
Once you get yours going.....go for a nice long drive.....
A really looonngg drive to get the cars charging system to recharge the battery......
It's designed to charge a lead/calcium battery I guess.....
Master
I just bought a cTek 25 amp charger for the camper, put my deep cycle on it and it charged it no problems, I had already tried to charge it with my 4 amp cheapy but it kept tripping to fault mode.
They are not cheap but if you are going to use it regularly cTek would be my recommendation, saved me having to buy a new deep cycle battery.
Master
SubscriberAnother vote for Ctek. They are compact and very robust. We use Projecta chargers at work but we have had a couple of issues with it. It pays to shop around though, I saved myself $100 or so purchasing off the internet on a 15amp Ctek. As it has been said before they have a couple of useful features such as a 'Recondition' mode for severely discharged batteries and also a 'Supply' mode which is useful for some modern cars to keep a 12 volt supply to the engine ecu if you have to remove the battery.
CTEK SWEDEN AB
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