Samlex controller settings for lithium battery

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I have an RP-190 with Samlex solar. it states the SCC-30ab is compatible with "lead-acid drop in replacement" lithium. I can't find anything explaining exactly what this means. I purchased a Renogy Lithium Phosphate battery. Assuming this qualifies, I am trying to figure out how to configure the SCC-30ab controller. It looks like there are supposed to be DIP switches, I assume on the back. Question 1 - is my Renogy Lithium battery compatible. Question 2 - am I correct I need to change DIP switches on the back of the controller. Question 3 - can someone advise what settings should be configured?

NOTE: I did find a later reference in the manual titled "Lithium Battery Charging" stating the settings should be ON-ON-ON for a 14.4v absorption rate (matching Renogy). However, on the diagram that setting is also shown as being for 8-N-CAD with a 16.0 absorption rate. Now I am totally confused.

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MT Tom Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23 Sep 2022 Location: Montana Online Status: Offline Posts: 2	Post Options Post Reply Quote MT Tom Report Post Quote Reply Topic: Samlex controller settings for lithium battery Posted: 14 Apr 2024 at 7:43am
	I have an RP-190 with Samlex solar. it states the SCC-30ab is compatible with "lead-acid drop in replacement" lithium. I can't find anything explaining exactly what this means. I purchased a Renogy Lithium Phosphate battery. Assuming this qualifies, I am trying to figure out how to configure the SCC-30ab controller. It looks like there are supposed to be DIP switches, I assume on the back. Question 1 - is my Renogy Lithium battery compatible. Question 2 - am I correct I need to change DIP switches on the back of the controller. Question 3 - can someone advise what settings should be configured? NOTE: I did find a later reference in the manual titled "Lithium Battery Charging" stating the settings should be ON-ON-ON for a 14.4v absorption rate (matching Renogy). However, on the diagram that setting is also shown as being for 8-N-CAD with a 16.0 absorption rate. Now I am totally confused.
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GlueGuy Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 15 May 2017 Location: N. California Online Status: Offline Posts: 2660	Post Options Post Reply Quote GlueGuy Report Post Quote Reply Posted: 14 Apr 2024 at 11:27am
	Many, if not most LFP batteries come with a built-in BMS, which manages the actual charging to what the battery can tolerate. I would (1) check with Forrest River about the charger, and (2) Verify your Renogy battery has the built-in BMS.
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MT Tom Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23 Sep 2022 Location: Montana Online Status: Offline Posts: 2	Post Options Post Reply Quote MT Tom Report Post Quote Reply Posted: 14 Apr 2024 at 12:52pm
	Thanks Glue Guy!
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StephenH Members Profile Send Private Message Find Members Posts Add to Buddy List podders Helping podders - pHp Joined: 29 Nov 2015 Location: Wake Forest, NC Online Status: Offline Posts: 6329	Post Options Post Reply Quote StephenH Report Post Quote Reply Posted: 15 Apr 2024 at 11:54am
	The Renogy batteries do come with built-in BMS. I have my doubts about the Samlex controller. I have a Renogy one. It does not do a float charge for the LiFePO4 battery profile, with the instructions stating that it isn't needed.
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