Chassis?Starter Grp 31 AGM. CROWN1 AGM?
I've been spending a few weeks trying to save my current CAT 8D Maintenance Free Starter Battery, due to an unfortunate few days of drain from Fog Lights being left on. (Pretty sure I have them back, ...
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"Freshening" for AGM before putting in service is sort of what I did. Compromised based upon gear on hand:)!
I game up with between 3 - 6 Amps per 100AH rating of the battery for about 3 hours.
I used 15 amps (255AH rating of the GPL-8DA), for three hours.
When I got home after picking it up the Sam Dimas Lifeline Warehouse, it had a reading of 12.83V (Which I thought was pretty good!). After the 15 amps for 3 hours, and then setting over night for about 18 hours, I had a reading of 12.92V (Which I was again OK with.).
It was installed in the coach that same day, and saw it's first alternator (200A) charge feed as we drove home from the shop for about an hour.
So I think it started it's life out OK, for my Chassis duty.
Since then, it's been Magnum SBC connection maintained. RV is parked next to the garage in storage, pending out first trip of the year late next week. House batteries typically reflect Full Charge, or sometimes Float, every time I pop into the coach for various reasons. (Magnum MS2812 with BMK-Meter and Temp Sensor and Smart Battery Combiner wedding the Aux/Chassis battery. Custom program set to the new Lifeline February change to a bit higher Float values.)
Over the last 8 days, I've taken five readings of the Chassis. (It is not disconnected, as both the battery disconnect and the salesman switch remain on while in storage, so some normal maintenance draws off of the Chassis battery.) The values started on day 2 after parking the rig, and last one was day 8. First value of 12.89V, each of the readings afterwards stepped down slightly, until the day 8 reading of 12.79V yesterday.
As I understand it, the House Battery does not kick into Charge/Float mold until it dips to ~12.6V(?). Which has not happened often in this 8 days. I've seen Float twice, on my periodic pop ins to the coach. So the SBC has not had much chance to 'share the charge' with the Chassis - as the Magnum Charger has usually indicated Full Charge. (Note, BMK meter, and monitoring of SOC and Total AH's Out/In support that the House Bank X's 4 L16 Lifelines, are topped off well.).
Enjoying watching the dynamics of all of this, and will continuing taking readings for the next week while in storage mode until we leave. Good Hmmm info it be:)!
And thanks again for all yours feedback for this full thread. But also from my last question about Topping Off after reading the T-105 thread on breaking in new batteries. Wanted to make sure I was not missing something before putting this into full service:)!
Smitty
I game up with between 3 - 6 Amps per 100AH rating of the battery for about 3 hours.
I used 15 amps (255AH rating of the GPL-8DA), for three hours.
When I got home after picking it up the Sam Dimas Lifeline Warehouse, it had a reading of 12.83V (Which I thought was pretty good!). After the 15 amps for 3 hours, and then setting over night for about 18 hours, I had a reading of 12.92V (Which I was again OK with.).
It was installed in the coach that same day, and saw it's first alternator (200A) charge feed as we drove home from the shop for about an hour.
So I think it started it's life out OK, for my Chassis duty.
Since then, it's been Magnum SBC connection maintained. RV is parked next to the garage in storage, pending out first trip of the year late next week. House batteries typically reflect Full Charge, or sometimes Float, every time I pop into the coach for various reasons. (Magnum MS2812 with BMK-Meter and Temp Sensor and Smart Battery Combiner wedding the Aux/Chassis battery. Custom program set to the new Lifeline February change to a bit higher Float values.)
Over the last 8 days, I've taken five readings of the Chassis. (It is not disconnected, as both the battery disconnect and the salesman switch remain on while in storage, so some normal maintenance draws off of the Chassis battery.) The values started on day 2 after parking the rig, and last one was day 8. First value of 12.89V, each of the readings afterwards stepped down slightly, until the day 8 reading of 12.79V yesterday.
As I understand it, the House Battery does not kick into Charge/Float mold until it dips to ~12.6V(?). Which has not happened often in this 8 days. I've seen Float twice, on my periodic pop ins to the coach. So the SBC has not had much chance to 'share the charge' with the Chassis - as the Magnum Charger has usually indicated Full Charge. (Note, BMK meter, and monitoring of SOC and Total AH's Out/In support that the House Bank X's 4 L16 Lifelines, are topped off well.).
Enjoying watching the dynamics of all of this, and will continuing taking readings for the next week while in storage mode until we leave. Good Hmmm info it be:)!
And thanks again for all yours feedback for this full thread. But also from my last question about Topping Off after reading the T-105 thread on breaking in new batteries. Wanted to make sure I was not missing something before putting this into full service:)!
Smitty
