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06-23-2017, 10:46 PM
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#1
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Senior Member
Join Date: Mar 2013
Posts: 4,234
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Bluesea issue?
A couple days ago I spent some time helping a new SMB owner with a dead house battery that was accidently discharged to about 2V and wasn’t recharging. It turned out that there was a Blueseas separator that was in lock out.The lockout condition is triggered when battery voltage goes below something like 9V.Once at that point, the separator will not close, which doesn’t allow the alternator to recharge the house battery until it’s recharged by some other method.Plugging into shore power was the obvious solution, but if one were someplace where there was no shore power, the only other way I could think of to recharge it, would be to install a jumper wire across the two battery terminals.This seems like a silly design. Anyone else had this problem?
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Arctic Traveller
KC6TNI
2001 GTRV
Advanced 4wd
Agile Ride improvement package
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06-23-2017, 11:25 PM
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#2
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Senior Member
Join Date: Apr 2013
Location: Phoenix, AZ
Posts: 156
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Were you dealing with the 7610? As far as I know it won't close if either battery is below 9.5v and will not come out of lockout until the voltage of the offending battery is increased above 9.5
The 7622 has both a manual override knob and remote switch which will allow you to force it closed, force it open, or operate in auto mode which follows the voltage parameters set by Blue Sea.
I bought the 7622 for the exact reason you are asking about. I just wanted the additional control that it offered over the 7610. Of course it's almost twice the price, but you get the extra capabilities. Also, the 7622 has higher current ratings.
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2005 E350 4x4 V10
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06-24-2017, 07:59 AM
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#3
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Senior Member
Join Date: Jul 2013
Location: So Cal
Posts: 4,046
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I have the 7610 and carry a short (9" or so) battery cable jumper for those occasions....haven't had to use it yet.
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2008 E350 RB passenger 4WD SMB penthouse
2013 KTM 350 EXC
2008 KTM 250 XCF-W
2003 Honda Element
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06-24-2017, 08:45 AM
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#4
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Senior Member
Join Date: May 2007
Location: Beaverton, OR
Posts: 2,490
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This is a feature of most of the ACR's. In theory if you were to try and charge a very depleted battery, you may damage your alternator. Take into account that your shore charger may also have some low voltage lockout, and you could be screwed.
With the old Surepower 1315 ,I had installed a Bluesea 6007 switch in parallel to the unit. This allowed me a manual disconnect, normal operation , and manual bypass or connect method. Much like the yellow manual switch on the 7622. One benefit of the separate switch ,if the ACR has a contact issue of some sort, you still have a way around it. It obviously comes at a price of space to mount and extra cabling.
If I had concerns about, the depleted battery causing issues with the alternator, I would manually connect and try to let the battery banks equalise to get the depleted battery high enough to lessen that concern.
A low voltage disconnect is another way of making sure you don't run into this.
-greg
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-greg
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"Goldilocks" 2020 Ford Transit High Roof Extended 3.5 EcoBoost AWD Homebuilt
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06-24-2017, 04:04 PM
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#5
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Senior Member
Join Date: May 2017
Location: SW FL * PNW * New England
Posts: 143
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Yes, the unit Jeff's referring to is a 7610.
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Muy Bonita - 2000 Ford E-350 V10 Quigley with 285/75 R16s, SMB-West RB50, manual PH
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06-24-2017, 06:55 PM
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#6
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Senior Member
Join Date: Jul 2013
Location: So Cal
Posts: 4,046
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Quote:
Originally Posted by Scalf77
With the old Surepower 1315 ,I had installed a Bluesea 6007 switch in parallel to the unit. This allowed me a manual disconnect, normal operation , and manual bypass or connect method. Much like the yellow manual switch on the 7622. One benefit of the separate switch ,if the ACR has a contact issue of some sort, you still have a way around it. It obviously comes at a price of space to mount and extra cabling.
If I had concerns about, the depleted battery causing issues with the alternator, I would manually connect and try to let the battery banks equalise to get the depleted battery high enough to lessen that concern.
-greg
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The 7610 and the 6007 switch are readily available together as an "add-a-battery" kit. That's what I bought but like Scalf77 mentioned above I didn't have the real estate to mount the switch...so I just carry a short battery cable.
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2008 E350 RB passenger 4WD SMB penthouse
2013 KTM 350 EXC
2008 KTM 250 XCF-W
2003 Honda Element
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06-24-2017, 10:29 PM
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#7
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Senior Member
Join Date: May 2017
Location: SW FL * PNW * New England
Posts: 143
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So, in theory, I could carry a battery cable long enough to reach between the two batteries, to "equalize the charge" across the two, as a recovery attempt, should this happen again?
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Muy Bonita - 2000 Ford E-350 V10 Quigley with 285/75 R16s, SMB-West RB50, manual PH
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06-24-2017, 11:37 PM
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#8
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Senior Member
Join Date: Mar 2013
Posts: 4,234
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Quote:
Originally Posted by achop
So, in theory, I could carry a battery cable long enough to reach between the two batteries, to "equalize the charge" across the two, as a recovery attempt, should this happen again?
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All you need is one long enough to reach from one terminal on the seperator to the other terminal, probably 6 or 8 inches long.
__________________
Arctic Traveller
KC6TNI
2001 GTRV
Advanced 4wd
Agile Ride improvement package
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06-25-2017, 03:21 PM
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#9
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Senior Member
Join Date: May 2017
Location: SW FL * PNW * New England
Posts: 143
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Quote:
Originally Posted by arctictraveller
All you need is one long enough to reach from one terminal on the seperator to the other terminal, probably 6 or 8 inches long.
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Oh, so between the two terminals of the isolator itself, so as to ...er ... remove the "isolation" function that separates the two batteries?
Thanks!
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Muy Bonita - 2000 Ford E-350 V10 Quigley with 285/75 R16s, SMB-West RB50, manual PH
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06-25-2017, 03:52 PM
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#10
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Senior Member
Join Date: Jul 2013
Location: So Cal
Posts: 4,046
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Quote:
Originally Posted by achop
Oh, so between the two terminals of the isolator itself, so as to ...er ... remove the "isolation" function that separates the two batteries?
Thanks!
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exactly. some isolators have switches (either remote or on the separator) to do this but a short battery cable will work fine.
__________________
2008 E350 RB passenger 4WD SMB penthouse
2013 KTM 350 EXC
2008 KTM 250 XCF-W
2003 Honda Element
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