Battery Drain - Usual Suspects

[Tonijim]

We have a new-to-us 2010 Four Winds Freedom Elite 31r Just replaced the two 12v coach batteries (probably OEM). The Bosch engine battery was new in 4/13. It will not hold a charge if allowed to sit 4 weeks or so with all systems shut down. It will accept a charge and run fine while on the road or on short stays.

Question - are there usual suspects in battery rundown in a shut down storage situation?

Any thoughts would be appreciated.

Jim

[burlmart]

Tonijim wrote:
We have a new-to-us 2010 Four Winds Freedom Elite 31r Just replaced the two 12v coach batteries (probably OEM). The Bosch engine battery was new in 4/13. It will not hold a charge if allowed to sit 4 weeks or so with all systems shut down. It will accept a charge and run fine while on the road or on short stays.

Question - are there usual suspects in battery rundown in a shut down storage situation?

Any thoughts would be appreciated.

Jim

you could test chassis batt health by disconnecting it , measure ita voltage, trickle it to full charge (note if this appears to happen rather quickly). read around 12.8v or so, then let batt sit a day or three. if it drops below 12.6v uncabled, it may have a bad cell.

if the above occurs, your battery entangler solenoid may be root of all the battery issues you posted.

[AJR]

On my, new to me, 2010 chassis the dash radio really never shuts off. At some point this summer I plan to take the radio out of the dash and put a switch on the 12V lead to the radio. I think it is a Jensen radio.

[Trackrig]

The DW's Ford Escape does the same thing - goes dead in three weeks. Took it back to the dealer. They said, Oh yeah, that's the way it is due to all of the electronics on new vehicles, and wouldn't look at it any further.

Now I unhook the battery or put a battery minder it whenever we're going to be gone longer than two weeks.

Bill

[IAMICHABOD]

Clore Automotive sent me this on Parasitic Loads It may be helpful to you.

You can sign up for the free news letter. I get one monthly and a reminder to charge my Jump N Carry. It is always with me.

[SCVJeff]

HOUSE Loads:
CO2 Detector
LP Detector (usually have a switch)
Clock Radio
Outside Entertainment Center
Antenna Amp (if left on)
Storage bat lights with out of adjustment switches, or simply left on
Some Fantastic Fans
Some refrigerators

Chassis Loads:
Engine Computer
Transmission Computer (some)