[928uk] Charge rates for Bosch Silver 7C
Paul R Smith
smiffypr at clear.net.nz
Sat Feb 25 00:32:42 UTC 2012
You'll need the high rate unless you want it to take a week.
Even on the high charge, it will take a couple of days to be fully charged.
If the charger has an automatic cut off, let it charge until it cuts
off. If it has indicator lights, leave it until it shows fully charged.
If neither of the above, after a couple of days, disconnect the battery
for at least 30 minutes then check the voltage, it should be 12.7 volts.
The only time you would want to use the low rate would be either it was
a small battery (small motorcycle size), or if it was a gel or mat
filled one, orif you wouldn't be able to check on it daily.
Overcharging will result in loss of water (gassing) and with most
batteries being sealed theses days, that will shorten its life.
Smiffy
On 25/02/2012 11:13 a.m., Joe Field wrote:
> Does anyone have any thoughts on the best charge rate for a Bosch
> silver 7c that is too flat to crank the engine. The accumate
> maintainer won't touch it now, so I have a heavier duty charger lined
> up that indicates 8 amp fast charge 2.5amps slow charge rate.
>
> The earth strap is disconnected during charging.
>
> Joe Field
> 92GT
>
> On 24 Feb 2012, at 11:12, "ronald littlewood"
> <ronaldlittlewood at yahoo.com <mailto:ronaldlittlewood at yahoo.com>> wrote:
>
>> Here we go again My most recent problem was a poorly battery & a not
>> so well charger I,m sure the battery is on its way to battery heaven
>> & the charger cost me a £5 er off ebay I do have some quality
>> chargers & batteries but in a different garage .The battery in
>> question was on my shopping trolley Corsa but have changed it now .
>> I could write a book on Battery chargers which I have worked in yes
>> that right IN . Theres nothing like a walk in battery charger to get
>> the neck hairs prickling. Happy charging Ron
>>
>> --- On *Fri, 24/2/12, Paul Lacey /<t595 at btopenworld.com
>> <mailto:t595 at btopenworld.com>>/* wrote:
>>
>>
>> From: Paul Lacey <t595 at btopenworld.com <mailto:t595 at btopenworld.com>>
>> Subject: Re: [928uk] Battery for a 86 S2
>> To: "Kevin Fearon" <kevin_fearon at yahoo.co.uk
>> <mailto:kevin_fearon at yahoo.co.uk>>, "ronald littlewood"
>> <ronaldlittlewood at yahoo.com <mailto:ronaldlittlewood at yahoo.com>>,
>> "Paul R Smith" <smiffypr at clear.net.nz <mailto:smiffypr at clear.net.nz>>
>> Cc: "928uk at lists.928.org.uk <mailto:928uk at lists.928.org.uk>"
>> <928uk at lists.928.org.uk <mailto:928uk at lists.928.org.uk>>
>> Date: Friday, 24 February, 2012, 10:24
>>
>> Hi,
>> The Accumate is an excellent charger, I have two of them and use
>> them frequently on my bike and 928 batteries to keep them tip
>> top. The charger comes with a flying lead you can leave connected
>> to the battery so you don't need to dig the battery out of the
>> car / bike. Extra flying leads are about £4.50 if you have
>> several vehicles.
>> However they are not suitable to connect to your 928 if the
>> battery is totally dead without disconnecting the battery from
>> the car, this is because they can supply 18v when trying to
>> revive a dead battery.
>> They are also low current (originally designed for bike
>> batteries) so I use a "normal" charger initially on a very flat
>> battery and then the Accumate to condition it.
>> I use one of these and it's very good, I can highly recommend it:
>> http://www.theultimatefinish.co.uk/ring/rcb312-6-12v-12-amp-workshop-charger.aspx
>> Regards,
>> Paul Lacey
>>
>> *From:* Kevin Fearon <kevin_fearon at yahoo.co.uk
>> <mailto:kevin_fearon at yahoo.co.uk>>
>> *To:* ronald littlewood <ronaldlittlewood at yahoo.com
>> <mailto:ronaldlittlewood at yahoo.com>>; Paul R Smith
>> <smiffypr at clear.net.nz <mailto:smiffypr at clear.net.nz>>
>> *Cc:* "928uk at lists.928.org.uk <mailto:928uk at lists.928.org.uk>"
>> <928uk at lists.928.org.uk <mailto:928uk at lists.928.org.uk>>
>> *Sent:* Friday, 24 February 2012, 9:53
>> *Subject:* Re: [928uk] Battery for a 86 S2
>> Hi Ron,
>>
>> I have been using this charger for a couple of years, with very
>> satisfactory results.
>>
>> http://www.accumate.co.uk/accumate.htm
>>
>> It has even recovered a discharged motor cycle battery that been
>> sitting around for a year. I was ready to dispose of it but
>> thought I would connect it up and give it a go. Very pleasing!
>> See the FAQs below for the statement about suphated batteries.
>>
>> http://www.accumate.co.uk/optiFAQ1.htm
>>
>> I would always try this before buying a replacement battery. No
>> guarantee that it will recover every battery of course, but you
>> will always need a battery charger.
>> My justification for the expense was to 'buy once, buy wisely'.
>>
>> Kindest regards,
>>
>> Kevin
>>
>> *From:* ronald littlewood <ronaldlittlewood at yahoo.com
>> <mailto:ronaldlittlewood at yahoo.com>>
>> *To:* Paul R Smith <smiffypr at clear.net.nz
>> <mailto:smiffypr at clear.net.nz>>
>> *Cc:* "928uk at lists.928.org.uk
>> <mailto:928uk at lists.928.org.uk>" <928uk at lists.928.org.uk
>> <mailto:928uk at lists.928.org.uk>>
>> *Sent:* Friday, 24 February 2012, 9:38
>> *Subject:* Re: [928uk] Battery for a 86 S2
>> Hi Smiffy I knew you would have some valuable input please
>> keep us posted I have several battery chargers & am always
>> messing with them .Please keep us posted my problem is I have
>> more than 1 vehicle & sometimes go away for long periods &
>> forget to put trickle chargers on Happy motoring Ron
>>
>> --- On *Fri, 24/2/12, Paul R Smith /<smiffypr at clear.net.nz
>> <mailto:smiffypr at clear.net.nz>>/* wrote:
>>
>>
>> From: Paul R Smith <smiffypr at clear.net.nz
>> <mailto:smiffypr at clear.net.nz>>
>> Subject: Re: [928uk] Battery for a 86 S2
>> To: 928uk at lists.928.org.uk <mailto:928uk at lists.928.org.uk>
>> Date: Friday, 24 February, 2012, 3:43
>>
>> An old battery left flat for a week will be pretty
>> stuffed, so for reliability I can understand Feisal
>> wanting a new battery. Your problem sounds like it was
>> the battery charger not recognising a flat battery as a
>> battery. That is where a cheap basic battery charger is a
>> good option. As for batteries which won't take any charge
>> current, they often will if left on the charger long
>> enough, but they probably will never be very good. I'm
>> currently experimenting with a "desulphator", an
>> electronic device which applies short high voltage pulses
>> to clean up the lead plates. I'll report back when I know
>> how well it works. Smiffy On 24/02/2012 4:37 a.m., ronald
>> littlewood wrote:
>>> Hi Have you another Battery & a Battery charger? if so
>>> try charging the 2 batteries in parellel This worked for
>>> me a long time ago. some batteries wont charge if
>>> completely flat some chargers wont charge if battery
>>> seems dead, its worth a try I,m sure Obi wan Smiffy will
>>> advise Happy motoring Ron
>>>
>>> --- On *Thu, 23/2/12, Feisal Ali /<feisal7 at gmail.com>
>>> <http://uk.mc316.mail.yahoo.com/mc/compose?to=feisal7@gmail.com>/*
>>> wrote:
>>>
>>>
>>> From: Feisal Ali <feisal7 at gmail.com>
>>> <http://uk.mc316.mail.yahoo.com/mc/compose?to=feisal7@gmail.com>
>>> Subject: [928uk] Battery for a 86 S2
>>> To: 928uk at lists.928.org.uk
>>> <http://uk.mc316.mail.yahoo.com/mc/compose?to=928uk@lists.928.org.uk>
>>> Date: Thursday, 23 February, 2012, 13:49
>>>
>>> Hi
>>> Alas I left the interior light for a week and the
>>> battery was so dead even the AA were no good. I need
>>> to replace it. The one in there is a Bosch S3 007 .
>>> Any other thoughts?
>>> Cheers
>>> Feisal
>>>
>>> -----Inline Attachment Follows-----
>>>
>>> _______________________________________________
>>> 928uk mailing list928uk at lists.928.org.uk
>>> <http://uk.mc316.mail.yahoo.com/mc/compose?to=928uk@lists.928.org.uk>http://lists.928.org.uk/cgi-bin/mailman/listinfo/928uk
>>>
>>>
>>> _______________________________________________
>>> 928uk mailing list
>>> 928uk at lists.928.org.uk <http://uk.mc316.mail.yahoo.com/mc/compose?to=928uk@lists.928.org.uk>
>>> http://lists.928.org.uk/cgi-bin/mailman/listinfo/928uk
>>>
>>
>> -----Inline Attachment Follows-----
>>
>> _______________________________________________ 928uk
>> mailing list928uk at lists.928.org.uk
>> <http://uk.mc316.mail.yahoo.com/mc/compose?to=928uk@lists.928.org.uk>http://lists.928.org.uk/cgi-bin/mailman/listinfo/928uk
>>
>> _______________________________________________ 928uk mailing
>> list928uk at lists.928.org.uk
>> <http://uk.mc316.mail.yahoo.com/mc/compose?to=928uk@lists.928.org.uk>http://lists.928.org.uk/cgi-bin/mailman/listinfo/928uk
>>
>> _______________________________________________ 928uk mailing
>> list928uk at lists.928.org.uk
>> <http://uk.mc316.mail.yahoo.com/mc/compose?to=928uk@lists.928.org.uk>http://lists.928.org.uk/cgi-bin/mailman/listinfo/928uk
>>
>> _______________________________________________
>> 928uk mailing list
>> 928uk at lists.928.org.uk <mailto:928uk at lists.928.org.uk>
>> http://lists.928.org.uk/cgi-bin/mailman/listinfo/928uk
>
>
> _______________________________________________
> 928uk mailing list
> 928uk at lists.928.org.uk
> http://lists.928.org.uk/cgi-bin/mailman/listinfo/928uk
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.928.org.uk/pipermail/928uk/attachments/20120225/b8f031fb/attachment.htm>
More information about the 928uk
mailing list