DC battery not working

brokenrock

Hi, totally new to the t@b experience having just purchased a t@b 2008 model Q recently...I seem to be totally flummoxed before I can even get out of the driveway...All systems work fine on AC power, but when I disconnect A/C, I have nothing from my DC battery... I have studied fuse placements for my model and have no in-line fuses on the leads from the battery cable whatsoever...I have studied battery on/off switches but this model doesn't seem to have one. I have brought the battery up to total full charge according to my charger....All fuses in the power converter box seem to be fine...I don't have a clue what to check next...Can anyone offer me some advice on what to try next?  My understanding of the electrical system is next to nil...Thanks in advance for any ideas...stuck in the driveway in Montana..

pthomas745

Welcome!

Have you looked for this little jewel?  Earlier Tab's had a different type of battery fuse, you can find a picture here:

https://tab-rv.vanillacommunity.com/discussion/6382/dutchman-t-b-resources

Here is a thread with the same discussion (on a 2004 Tab) with some other troubleshooting tips.

https://tab-rv.vanillacommunity.com/discussion/2931/i-have-no-power-when-relying-on-battery-only/p1

brokenrock

Thank you for taking the time to reply..I have crawled under and traced the positive lead from the battery to where it goes into the body....i will look again in the morning...I just feel like there has to be a fuse along that line someplace...like the idea of finding the little jewel...

Bayliss

@pthomas745 provided good advice.  If that doesn't work out, you might want to contact the previous owner, or whoever you purchased it from, to see if they may have installed a cut-off switch hidden somewhere that is not obvious.

Sharon_is_SAM

Here is some info from the Yahoo TaB group:

What about that little thermal relay just outside the battery box in the front? I have found that it can go bad, lights will come on when connected to power, but not be charging the battery...

Electrical Troubleshooting

https://xa.yimg.com/df/tabtrailers/ElectricalTroubleshooting.pdf?token=I6_RAZz50DNMCr_NRP_siYwiPztDnk_1AAXLIryqSWspSQUf2s5UyxznLrL6sH63I_lMJMWUDOI7-GoZhk_VX2-ykUWYCUeXpbUkEKUdejY0IIHOX4TtyTooB4W_5aXiPMlzApIQ2A&type=download

Fuses in T@B:

 OE Fuse

15 amp – Heat Pump

15 amp – Refrig

15 amp – Lights

5 amp – Water Pump

1 amp – LP

 Flip Switches:

30 amp – Main

15 amp – Receptacles

20 amp – Heat Pump

Converter

https://xa.yimg.com/df/tabtrailers/WFCOManual.pdf?token=Dgs7hePvTtEt9JvP0L8oopVhQWDoEWxBYEB-VmjmTs04syc3h7JVOjcLrDDBOpVkwVNkjNCr_XZHnQosSJZ4aVDwZnXKIiq3GQRoxoMOld2Nuz-smeBjPA&type=download

 

brokenrock

Thanks for the replies...I am in the process of trying to talk to the dealer I purchased from to find a cut-off switch as mentioned..