Page 1 of 3 123 LastLast
Results 1 to 10 of 23

Thread: Re-charging a dead flat deep cycle battery

  1. 2nd July 2014, 06:13 PM #1
    LandyAndy's Avatar
    LandyAndy
    LandyAndy is offline RoverLord Gold Subscriber
    Join Date
    Feb 2004
    Location
    Williams West Aust
    Posts
    20,998
    Total Downloaded
    0

    Re-charging a dead flat deep cycle battery

    I have been given 2 130amp deep cycle batteries.They are ex mobile traffic lights,were only used for a month.During storage in the shed a fault in the electronics lead to the batteries going flat,currently showing 0.6V.
    I tried my 25amp Ctek on both of them,neither will alow the charger to commence charging.The chargers at work and its solar panel system wouldnt charge them either.
    I have now tried to get some power into one by using the supply voltage(13.6V) on the Ctek.
    Is it likely that these batteries are stuffed???
    Andrew
    DISCOVERY IS TO BE DISOWNED
    Midlife Crisis.Im going to get stuck into mine early and ENJOY it.
    Snow White MY14 TDV6 D4
    Alotta Fagina MY14 CAT 12M Motor Grader
    2003 Stacer 525 Sea Master Sport
    I made the 1 millionth AULRO post
    Reply With Quote Reply With Quote
  2. 2nd July 2014, 06:15 PM #2
    dswatts's Avatar
    dswatts
    dswatts is offline Master Subscriber
    Join Date
    Jun 2010
    Location
    Fremantle
    Posts
    555
    Total Downloaded
    0
    The battery is too flat for the charger to recognise it. Use jumper leads to a charged battery, that should start the charger going.
    03 Disco 2a, TD5, Olso blue, 7 seater, Auto, Chipped, EGR'd, 2"lift, SLS, Dual Batteries, Provent, TM-2 engine saver
    Reply With Quote Reply With Quote
  3. 2nd July 2014, 06:22 PM #3
    LandyAndy's Avatar
    LandyAndy
    LandyAndy is offline RoverLord Gold Subscriber
    Join Date
    Feb 2004
    Location
    Williams West Aust
    Posts
    20,998
    Total Downloaded
    0
    Quote Originally Posted by dswatts View Post
    The battery is too flat for the charger to recognise it. Use jumper leads to a charged battery, that should start the charger going.
    Thanks Dylan.
    Will the supply voltage be OK on the CTek to lift the charge???
    About to go and check it,its been on supply for 10mins.
    Andrew
    DISCOVERY IS TO BE DISOWNED
    Midlife Crisis.Im going to get stuck into mine early and ENJOY it.
    Snow White MY14 TDV6 D4
    Alotta Fagina MY14 CAT 12M Motor Grader
    2003 Stacer 525 Sea Master Sport
    I made the 1 millionth AULRO post
    Reply With Quote Reply With Quote
  4. 2nd July 2014, 06:25 PM #4
    superquag
    superquag is offline ForumSage
    Join Date
    Aug 2007
    Location
    Gosnells
    Posts
    6,148
    Total Downloaded
    0
    Bet the charger is a bit warm !
    Reply With Quote Reply With Quote
  5. 2nd July 2014, 06:29 PM #5
    dswatts's Avatar
    dswatts
    dswatts is offline Master Subscriber
    Join Date
    Jun 2010
    Location
    Fremantle
    Posts
    555
    Total Downloaded
    0
    Quote Originally Posted by LandyAndy View Post
    Thanks Dylan.
    Will the supply voltage be OK on the CTek to lift the charge???
    About to go and check it,its been on supply for 10mins.
    Andrew
    Will be fine, might take a couple of hours to lift the voltage.
    Wouldn't leave it overnight tho.
    Will just act as an old style charger.
    03 Disco 2a, TD5, Olso blue, 7 seater, Auto, Chipped, EGR'd, 2"lift, SLS, Dual Batteries, Provent, TM-2 engine saver
    Reply With Quote Reply With Quote
  6. 2nd July 2014, 06:40 PM #6
    drivesafe's Avatar
    drivesafe
    drivesafe is offline OldBushie Vendor
    Join Date
    Jan 1970
    Location
    Queensland
    Posts
    7,904
    Total Downloaded
    0
    Another trick to try to bring back exceptionally low batteries is to get a solar panel, with NO REG and connect it directly to each battery and leave it for a few days.

    This is actually much kinder on the battery.

    For Land Rover Specific Dual Battery Systems and Headlight Wiring Upgrade Kits,
    Reply With Quote Reply With Quote
  7. 2nd July 2014, 06:52 PM #7
    LandyAndy's Avatar
    LandyAndy
    LandyAndy is offline RoverLord Gold Subscriber
    Join Date
    Feb 2004
    Location
    Williams West Aust
    Posts
    20,998
    Total Downloaded
    0
    Had a win,the one on supply is now charging corectly
    Is it likeley these batterys will be damaged,they have been dis-charged for aprox 8 months.
    Andrew
    DISCOVERY IS TO BE DISOWNED
    Midlife Crisis.Im going to get stuck into mine early and ENJOY it.
    Snow White MY14 TDV6 D4
    Alotta Fagina MY14 CAT 12M Motor Grader
    2003 Stacer 525 Sea Master Sport
    I made the 1 millionth AULRO post
    Reply With Quote Reply With Quote
  8. 2nd July 2014, 06:54 PM #8
    LandyAndy's Avatar
    LandyAndy
    LandyAndy is offline RoverLord Gold Subscriber
    Join Date
    Feb 2004
    Location
    Williams West Aust
    Posts
    20,998
    Total Downloaded
    0
    Quote Originally Posted by superquag View Post
    Bet the charger is a bit warm !
    Nope,its a 25amp unit.Has a heat sensor on the posative lead to prevent overheating of the battery and the charger is self regulating.
    Andrew
    DISCOVERY IS TO BE DISOWNED
    Midlife Crisis.Im going to get stuck into mine early and ENJOY it.
    Snow White MY14 TDV6 D4
    Alotta Fagina MY14 CAT 12M Motor Grader
    2003 Stacer 525 Sea Master Sport
    I made the 1 millionth AULRO post
    Reply With Quote Reply With Quote
  9. 2nd July 2014, 07:20 PM #9
    drivesafe's Avatar
    drivesafe
    drivesafe is offline OldBushie Vendor
    Join Date
    Jan 1970
    Location
    Queensland
    Posts
    7,904
    Total Downloaded
    0
    If you're not in a hurry, and if your charger’s output current can be reduced, for the first charge, charge them at a lower lower current.

    Low current charging is always better for any battery, whether it’s got a charge or flat like yours.

    For Land Rover Specific Dual Battery Systems and Headlight Wiring Upgrade Kits,
    Reply With Quote Reply With Quote
  10. 2nd July 2014, 07:51 PM #10
    LandyAndy's Avatar
    LandyAndy
    LandyAndy is offline RoverLord Gold Subscriber
    Join Date
    Feb 2004
    Location
    Williams West Aust
    Posts
    20,998
    Total Downloaded
    0
    Thanks Tim.
    I have it on re-con,will change it to normal as re-con does have a overcharge cycle to de-sulphide the plates.
    Andrew
    DISCOVERY IS TO BE DISOWNED
    Midlife Crisis.Im going to get stuck into mine early and ENJOY it.
    Snow White MY14 TDV6 D4
    Alotta Fagina MY14 CAT 12M Motor Grader
    2003 Stacer 525 Sea Master Sport
    I made the 1 millionth AULRO post
    Reply With Quote Reply With Quote
Page 1 of 3 123 LastLast
« Interesting compression test figures. | Maxi Drive - operation advice please »

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!