BFL13 wrote:Once these Anderson-type connectors (shown in Intinerant1's pic) are properly terminated/installed, it's impossible to get the polarity reversed after the fact. They only plug-in one way. We used 3 or 4 of the 175a versions for our dc2dc charger install. They're *very* rugged, well-built connectors.","body@stripHtml({\"removeProcessingText\":false,\"removeSpoilerMarkup\":false,\"removeTocMarkup\":false,\"truncateLength\":200})@stringLength":"203","kudosSumWeight":0,"repliesCount":0,"postTime":"2021-04-02T15:30:10.000-07:00","lastPublishTime":"2021-04-02T15:30:10.000-07:00","metrics":{"__typename":"MessageMetrics","views":977},"visibilityScope":"PUBLIC","placeholder":false,"originalMessageForPlaceholder":null,"isEscalated":null,"solution":false,"entityType":"FORUM_REPLY","eventPath":"category:RVTalk/community:feyqc97479board:TechnicalIssues/message:3495872/message:3495951","replies":{"__typename":"MessageConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"readOnly":false,"editFrozen":false,"body@stringLength":"533","rawBody":"
. . . EDIT-- beware of the polarity with those kind of wire sets. They can reverse in the middle depending. (eg try to join two 12v plugs end to end and get the polarities right :( )
BFL13 wrote:Once these Anderson-type connectors (shown in Intinerant1's pic) are properly terminated/installed, it's impossible to get the polarity reversed after the fact. They only plug-in one way. We used 3 or 4 of the 175a versions for our dc2dc charger install. They're *very* rugged, well-built connectors.","images":{"__typename":"AssociatedImageConnection","edges":[],"totalCount":0,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}},"attachments":{"__typename":"AttachmentConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"timeToRead":1,"currentRevision":{"__ref":"Revision:revision:3495951_1"},"latestVersion":null,"messagePolicies":{"__typename":"MessagePolicies","canModerateSpamMessage":{"__typename":"PolicyResult","failureReason":{"__typename":"FailureReason","message":"error.lithium.policies.feature.moderation_spam.action.moderate_entity.allowed.accessDenied","key":"error.lithium.policies.feature.moderation_spam.action.moderate_entity.allowed.accessDenied","args":[]}}},"customFields":[]},"User:user:63866":{"__typename":"User","id":"user:63866","uid":63866,"login":"BFL13","biography":null,"registrationData":{"__typename":"RegistrationData","status":null,"registrationTime":"2006-02-15T14:46:18.000-08:00"},"deleted":false,"email":"","avatar":{"__typename":"UserAvatar","url":"https://community.goodsam.com/t5/s/feyqc97479/m_assets/avatars/default/avatar-5.svg?time=1737155183000"},"rank":{"__ref":"Rank:rank:41"},"entityType":"USER","eventPath":"community:feyqc97479/user:63866"},"ModerationData:moderation_data:3495950":{"__typename":"ModerationData","id":"moderation_data:3495950","status":"APPROVED","rejectReason":null,"isReportedAbuse":false,"rejectUser":null,"rejectTime":null,"rejectActorType":null},"ForumReplyMessage:message:3495950":{"__typename":"ForumReplyMessage","author":{"__ref":"User:user:63866"},"id":"message:3495950","revisionNum":1,"uid":3495950,"depth":1,"hasGivenKudo":false,"subscribed":false,"board":{"__ref":"Forum:board:TechnicalIssues"},"parent":{"__ref":"ForumTopicMessage:message:3495872"},"conversation":{"__ref":"Conversation:conversation:3495872"},"subject":"Re: LifePo4 Voltage at .5C - .6C Discharge","moderationData":{"__ref":"ModerationData:moderation_data:3495950"},"body":"With jumper cables to the LFPs, it might be possible for voltages from the truck to be wrong for your LFPs? 15v at first? It depends on the truck I guess.
. . . EDIT-- beware of the polarity with those kind of wire sets. They can reverse in the middle depending. (eg try to join two 12v plugs end to end and get the polarities right :( )
BFL13 wrote:
T
Just curious--can you get 12v to the rig via 7-pin with your set-up if the trailer batts are 'dead in the water' for any reason? Will that light up the Magnum?
-With the trailer batts ok, do you mind paralleling the truck battery with the LFPs via 7-pin? I worry about mixing battery types, but I am told here that is not an issue really. What do you do? Thanks.
![](\"https://i.imgur.com/eFE1yMkl.jpg\")
","body@stripHtml({\"removeProcessingText\":false,\"removeSpoilerMarkup\":false,\"removeTocMarkup\":false,\"truncateLength\":200})@stringLength":"203","kudosSumWeight":0,"repliesCount":0,"postTime":"2021-04-02T13:48:02.000-07:00","lastPublishTime":"2021-04-02T13:48:02.000-07:00","metrics":{"__typename":"MessageMetrics","views":493},"visibilityScope":"PUBLIC","placeholder":false,"originalMessageForPlaceholder":null,"isEscalated":null,"solution":false,"entityType":"FORUM_REPLY","eventPath":"category:RVTalk/community:feyqc97479board:TechnicalIssues/message:3495872/message:3495947","replies":{"__typename":"MessageConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"readOnly":false,"editFrozen":false,"body@stringLength":"1103","rawBody":"BFL13 wrote:
T
Just curious--can you get 12v to the rig via 7-pin with your set-up if the trailer batts are 'dead in the water' for any reason? Will that light up the Magnum?
-With the trailer batts ok, do you mind paralleling the truck battery with the LFPs via 7-pin? I worry about mixing battery types, but I am told here that is not an issue really. What do you do? Thanks.
","images":{"__typename":"AssociatedImageConnection","edges":[],"totalCount":0,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}},"attachments":{"__typename":"AttachmentConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"timeToRead":1,"currentRevision":{"__ref":"Revision:revision:3495947_1"},"latestVersion":null,"messagePolicies":{"__typename":"MessagePolicies","canModerateSpamMessage":{"__typename":"PolicyResult","failureReason":{"__typename":"FailureReason","message":"error.lithium.policies.feature.moderation_spam.action.moderate_entity.allowed.accessDenied","key":"error.lithium.policies.feature.moderation_spam.action.moderate_entity.allowed.accessDenied","args":[]}}},"customFields":[]},"ModerationData:moderation_data:3495946":{"__typename":"ModerationData","id":"moderation_data:3495946","status":"APPROVED","rejectReason":null,"isReportedAbuse":false,"rejectUser":null,"rejectTime":null,"rejectActorType":null},"ForumReplyMessage:message:3495946":{"__typename":"ForumReplyMessage","author":{"__ref":"User:user:63866"},"id":"message:3495946","revisionNum":1,"uid":3495946,"depth":1,"hasGivenKudo":false,"subscribed":false,"board":{"__ref":"Forum:board:TechnicalIssues"},"parent":{"__ref":"ForumTopicMessage:message:3495872"},"conversation":{"__ref":"Conversation:conversation:3495872"},"subject":"Re: LifePo4 Voltage at .5C - .6C Discharge","moderationData":{"__ref":"ModerationData:moderation_data:3495946"},"body":"Some RVs have a big warning sign by the stove to never use it for heating the rig (fumes) Our 5er did. Owner's manuals have that too. And with no 12v, no range hood exhaust fan either.","body@stripHtml({\"removeProcessingText\":false,\"removeSpoilerMarkup\":false,\"removeTocMarkup\":false,\"truncateLength\":200})@stringLength":"187","kudosSumWeight":0,"repliesCount":0,"postTime":"2021-04-02T13:17:31.000-07:00","lastPublishTime":"2021-04-02T13:17:31.000-07:00","metrics":{"__typename":"MessageMetrics","views":302},"visibilityScope":"PUBLIC","placeholder":false,"originalMessageForPlaceholder":null,"isEscalated":null,"solution":false,"entityType":"FORUM_REPLY","eventPath":"category:RVTalk/community:feyqc97479board:TechnicalIssues/message:3495872/message:3495946","replies":{"__typename":"MessageConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"readOnly":false,"editFrozen":false,"body@stringLength":"187","rawBody":"Some RVs have a big warning sign by the stove to never use it for heating the rig (fumes) Our 5er did. Owner's manuals have that too. And with no 12v, no range hood exhaust fan either.","images":{"__typename":"AssociatedImageConnection","edges":[],"totalCount":0,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}},"attachments":{"__typename":"AttachmentConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"timeToRead":1,"currentRevision":{"__ref":"Revision:revision:3495946_1"},"latestVersion":null,"messagePolicies":{"__typename":"MessagePolicies","canModerateSpamMessage":{"__typename":"PolicyResult","failureReason":{"__typename":"FailureReason","message":"error.lithium.policies.feature.moderation_spam.action.moderate_entity.allowed.accessDenied","key":"error.lithium.policies.feature.moderation_spam.action.moderate_entity.allowed.accessDenied","args":[]}}},"customFields":[]},"ModerationData:moderation_data:3495945":{"__typename":"ModerationData","id":"moderation_data:3495945","status":"APPROVED","rejectReason":null,"isReportedAbuse":false,"rejectUser":null,"rejectTime":null,"rejectActorType":null},"ForumReplyMessage:message:3495945":{"__typename":"ForumReplyMessage","author":{"__ref":"User:user:36953"},"id":"message:3495945","revisionNum":1,"uid":3495945,"depth":1,"hasGivenKudo":false,"subscribed":false,"board":{"__ref":"Forum:board:TechnicalIssues"},"parent":{"__ref":"ForumTopicMessage:message:3495872"},"conversation":{"__ref":"Conversation:conversation:3495872"},"subject":"Re: LifePo4 Voltage at .5C - .6C Discharge","moderationData":{"__ref":"ModerationData:moderation_data:3495945"},"body":"Itinerant1,BFL13 wrote:
We always are off grid except at home, so redundancy is good. Don't want to have to bail and go home early.
Itenerant1, how did the sequence work when you had your BMS shut-down when one of your cells \"went rogue\"? In particular, how did you get your Magnum to light up so you could use its charger with the House batts shut down?
![](\"https://i.imgur.com/ooAigs1l.jpg\")
BFL13 wrote:
We always are off grid except at home, so redundancy is good. Don't want to have to bail and go home early.
Itenerant1, how did the sequence work when you had your BMS shut-down when one of your cells \"went rogue\"? In particular, how did you get your Magnum to light up so you could use its charger with the House batts shut down?
