Lee McDowell

On 6/10/2020 at 5:21 PM, Dan Lane said:

I finally determined my house batteries are indeed dead and need to replace them.  The current ones are Interstate 6 VDC.  Do you have one you prefer?

On 6/12/2020 at 7:41 AM, Tim503 said:

Dick, They are Absorbed Glass Mat so AGM. I bought some "T105 plus" a couple months ago for $125 no core charge and no tax here in OR. I ended up getting 16 but I am on solar. I still believe they are the way to go. They take abuse as in high charge rates I do mine now at 24 volt and have an IOTA for the house 12 volt using a Magnum pure sine wave but doing 12 volt you can charge them at 15 (14.8) to 90% and an equalize is 16.2 volts which saves on gas and time if using generator in a dry camp situation. It all depends on your usage of course. The maintenance is once a month or 2 with a gallon of distilled Walmart water and a funnel. I got 7 years on my last set. Since they go outside in a compartment the no gassing feature of AGM is not necessary and doing a little battery cleaning and maintenance is what it is all about.  I'm concerned too with theft as I did have a set stolen so I don't want the most expensive.

Make sure and buy in multiples of 4. If you do abuse these you won't be out much but they take a lot of abuse. They use them in golf carts.

The Trojan  105 are the best for the money in my opinion.  Add the Water Miser battery caps and it will cut your maintenance by an estimated 50%.  Again in my experience and opinion.

Thank you for your reply.  I just did not want to damage any electrical  wiring from drawing to much current.  Worst yet would be to loose my lights while driving at night or inclement weather.  I think at this I am going to do as you do.  I may try driving with lights on during the daylight hours as an experiment. 

Lee McDowell

98 Diplomat 38A

If I understand right you have the same issue.  How long do you operate while driving with the headlights on.  I have been concerned about overheating the circuit and tripping a breaker or blowing a fuse.  Also, have you had the problem looked at by a rv tech?  Another issued concerns me is draining the battery while driving.  Thanks. 

Lee M

’98 Diplomat 

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Thank you.  The reasoning has sound logic behind it.  I will definitely try it.  Thanks for input.

When my headlights are turned on my instruments change there readings.  Example are the voltmeter will go from 13.75 volts to 11.75 volts, temperature will go from normal to abound 220 degrees and the other instruments will change also.  I have changed the headlight switched.  The instruments go brighter along with the warning lights.  I suspect  a ground problem and would like to correct it.  I have had the dash cover of while addressing an other issue (loose outside driver side mirror) so removing the dash cover is not a problem if I have to do so.  I would like get some help/direction on correcting the issue. I have not been able to locate an electrical drawing for the coach.

Lee McDowell

1998 Diplomat