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Thread: Cranking battery State of Charge test feedback

  1. 26th September 2014, 05:47 PM #11
    Graeme
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    2010 3.0 D4 30 mins after a 500km run today with quite a few stops, the final stint about 45 mins.

    Cranking battery 9 month old Varta G14 (AGM) 12.30V then recovered to 12.40V once door/bonnet open timed out. Other modules are still drawing power.

    Aux battery 80AH Remco AGM 6+ years old via Matson rebranded VSR, 12.63V, fridge connected but switched "off" soon after end of trip.

    My observations have been that the D4 cranking battery's voltage progressively drops over time since last drive, presumably due to several modules continually drawing power. Maybe another time I'll measure the voltages sooner after a trip as I suspect the starting battery had already been depleted, but possibly the Varta AGM doesn't charge as high as the Remco AGM.

    Edit: 15 hours after stopping the main is 12.12V and the aux is 12.48V, with some opening of the tailgate and a door having occurred, interior lights permanently set off and vehicle not locked.
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
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  2. 29th September 2014, 09:38 AM #12
    keithand
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    Hi Tim

    I have a new D4 MY2014 TDV6 (4 weeks old) 50 Km per day commute, no long trip yet. Has not been on a battery charger. Battery is Exide AGM 90Ah

    Opened car/battery box and reading was 12.35V. After 10 minutes reading was 12.53V

    About to buy a traxide dual battery system, so I can start the setup for touring. I will then monitor changes after system installed.

    Cheers

    Keith
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  3. 29th September 2014, 06:49 PM #13
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    scarry
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    Checked mine this morning,i have the SC80 kit.
    Yesterday did 500k's,before that the battery was on float as had been on the smart charger overnight.

    This mornings voltage was 12.57v,read on my Fluke digital meter.

    This is the highest i can remember i ever seeing.

    Short drive to shops today,6k,will see what it is at in the morning.
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  4. 29th September 2014, 09:22 PM #14
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    Rick1970
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    '86 Rangie. Usually driven to work each day, 45+45km. Dual batteries with simple HD solenoid. 2 x Supercharge NS70's. Driven to work Friday, sat all Saturday, moved it Sunday, sat all Monday. Main 12.68 aux 12.64.


    93 Disco. Drove it to work today. Can sit for a week without use sometimes, Narva VSR Supercharge NS70 and Delco 82AH start/deep cycle. Engel in and running ATM. Been sitting for approx. 4hrs. Main 12.65 aux 12.4
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  5. 30th September 2014, 09:17 AM #15
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    d2dave
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    Tim. Do you just want results from Landrover vehicles or are you interested in other vehicles that I have?
    Dave.

    I was asked " Is it ignorance or apathy?" I replied "I don't know and I don't care."


    1983 RR gone (wish I kept it)
    1996 TDI ES.
    2003 TD5 HSE
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  6. 30th September 2014, 09:31 AM #16
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    drivesafe
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    Hi Dave and the more types of vehicles the better.

    Makes it interesting comparing different charging systems.

    For Land Rover Specific Dual Battery Systems and Headlight Wiring Upgrade Kits,
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  7. 30th September 2014, 11:11 AM #17
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    d2dave
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    D2 Td5 12.6v 42 hours *
    D1 Tdi Starting 12.1 23 hours *
    Aux 12.57
    Ford LTD V8 12.3 24 hours *
    P38 12.51 7 Days
    Husqvarna mower 12.72 15 hours **
    John Deere mower 12.73 24 hours
    Ski Boat 12.68 7 to 8 months.

    * These batteries are all under six months old

    ** This battery would be about four years old and came out of my D1
    when it would no longer start it in winter. Works fine in the mower.

    My aux battery in the D1 is a second hand N70z which was one of two
    taken from a Kenworth truck(starting battery) which had a bank of four. They mistakenly changed the wrong two. I got this about 5 years ago.
    Dave.

    I was asked " Is it ignorance or apathy?" I replied "I don't know and I don't care."


    1983 RR gone (wish I kept it)
    1996 TDI ES.
    2003 TD5 HSE
    1987 Isuzu County
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  8. 1st October 2014, 10:21 AM #18
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    pawl
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    D1 300Tdi, both batteries AC Delco HCM24SMF and car has now been idle for 20hrs.
    Driven 15kms each way to work each day, although 3 days ago car had a 3 1/2 hr drive that would've given batts. a good charge.
    Cranking Batt. 12.78V
    Aux Batt. 12.94V
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  9. 1st October 2014, 01:41 PM #19
    Mick Young
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    Battery kit

    Hello Tim,
    Sorry to intrude but I'm very interested in your Traxide Kit. What is it. I'm putting a dual system on my D2 very soon, cheers.
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  10. 1st October 2014, 06:57 PM #20
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    scarry
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    Quote Originally Posted by scarry View Post
    Checked mine this morning,i have the SC80 kit.
    Yesterday did 500k's,before that the battery was on float as had been on the smart charger overnight.

    This mornings voltage was 12.57v,read on my Fluke digital meter.

    This is the highest i can remember i ever seeing.

    Short drive to shops today,6k,will see what it is at in the morning.
    The next day it was on 12.56.Then after 30 minutes was on 12.67v.
    What happens is when i unlock it,it wakes up and drags the voltage down,then it comes up slightly as it goes back to sleep.Mine is usually locked up as under a carport.
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