Skip to main content

Timeline for Dual battery setup

Current License: CC BY-SA 3.0

13 events
when toggle format what by license comment
Sep 16, 2021 at 17:53 comment added CCTO This is common enough for vehicles with a large "house" or "hotel" load, such as RVs or yachts, where you want to be able to run anything from a ham radio to a microwave without risking draining your starting battery. Typically the house battery is a deep-cycle type which can tolerate being deeply drained without damage, which the starter battery is not.
Feb 1, 2021 at 21:27 vote accept David P.
Apr 17, 2020 at 7:10 answer added vu2nan timeline score: 1
Apr 17, 2020 at 6:00 history bumped CommunityBot This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Dec 17, 2019 at 18:03 history bumped CommunityBot This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Aug 13, 2019 at 2:02 history bumped CommunityBot This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Apr 13, 2019 at 0:04 history bumped CommunityBot This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Apr 4, 2018 at 16:55 comment added David P. @ToniHomedesiSaun how could I do that? Looks like a nice feature to keep my alternator happy. (Please don't say 555 ahaha)
Apr 4, 2018 at 16:36 history edited David P. CC BY-SA 3.0
added 196 characters in body
Apr 4, 2018 at 13:51 comment added Toni Homedes i Saun Would also bee good to add a small delay (one or two minutes) between engine start and paralleling the batteries. After the engine start the main battery will take a lot of current to recover from the effort. The alternator suffers. If yo add the second battery just then the alternator will suffer even more. Wait a minute and the main battery will already be "calm". In modern cars the main controller will raise/lower the alternator voltage to compensate for this. Check yours with a voltmeter => 14.5 for some time after engine start then down to 13.8
Apr 4, 2018 at 12:55 comment added Vladimir Cravero It is not clear to me why would you need two batteries. Is for backup? Do you want to double/increase the capacity? Please clarify.
Apr 4, 2018 at 11:59 answer added Solar Mike timeline score: 1
Apr 4, 2018 at 11:35 history asked David P. CC BY-SA 3.0