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--- electrical:12v:b2b [2020/06/23 13:41]
frater_secessus [Kisae]
+++ electrical:12v:b2b [2020/07/03 19:15]
frater_secessus [CTEK D250 series]
@@ Line 53: / Line 53: @@
 The [[https://amzn.to/2TozjWu|SmartPass accessory]] adds 80A of alternator-voltage charging when Vbatt is low enough that the alternator can still charge it directly.  This combined charging((up to 100A)) will happen in the first half of Bulk mode. As house battery voltage rises to normal alternator voltage the smartpass can no longer contribute.  At that point the 20A D250SA continues voltage-boosted charging to Absorption voltage.((https://www.4x4community.co.za/forum/showthread.php/292297-Ctek-250-upgrade-to-smartpass?p=3823781#post3823781))\\
-Note:  the CTEK D250SA((and the pre-2018 D250**S** model)) panel voltage (Vpanel) maximum is 23v.((https://www.ctek.com/storage/ma/b21ecd5d5e5943a995474cf36d586451/956c3913c8cc4319bb4e47baea0c6d82/pdf/A78BBB08A9DF8976DB79E21271E091489ACEF47A/D250SA-manual-UK-EN.pdf, pdf))  There are user reports that the unit is [[https://www.4x4community.co.za/forum/showthread.php/322874-CTEK-D250S-Problem?s=a2bc518379e50466c9ec523e8b114053&p=4270868#post4270868|repairable after overvoltage or polarity damage]].
+Note:  the CTEK D250SA((and the pre-2018 D250**S** model)) panel voltage (Vpanel) maximum is 23v.((https://www.ctek.com/storage/ma/b21ecd5d5e5943a995474cf36d586451/956c3913c8cc4319bb4e47baea0c6d82/pdf/A78BBB08A9DF8976DB79E21271E091489ACEF47A/D250SA-manual-UK-EN.pdf, pdf))  There are user reports that the unit is repairable after overvoltage or polarity damage.((https://www.4x4community.co.za/forum/showthread.php/322874-CTEK-D250S-Problem?s=a2bc518379e50466c9ec523e8b114053&p=4270868#post4270868)),((https://expeditionportal.com/forum/threads/dual-battery-system-with-ctek-d250-not-charging-battery-over-12-volts.174927/post-2416300))
 The MPPT charger will charge the house battery at up to 20A.  CTEK specifies 50-300W of panel, though the 23v Vmax limits the unit to [electrical:solar:panels#panel_voltage|nominal 12v panels].
@@ Line 59: / Line 59: @@
 > The D250SA trickle charges the starter battery from a solar panel at intervals of 3 seconds if the service battery is fully charged.((https://www.ctek.com/storage/C1493FC8638168601722950C8151FF6A802476C93EC460B3BC5323C8A7951C71/9fde706a812c451ebc7257ab76e05cdb/pdf/media/ac7a2dfdc9104b30939287bdb76b81fb/D250SA-manual-low-UK-EN.pdf))
+Note:  in 2020 CTEK added the [[https://amzn.to/2VNkfou|D250SE]] and [[https://amzn.to/2Aw56As|Smartpass 120S]] which have lithium settings.
 ==== Sterling ====
@@ Line 71: / Line 73: @@
   * DC1212 series DC-DC isolators in 20-40((and possibly 60A according to manual nomenclature)) output.  Switched on by ignition circuit on the D+ port.((https://www.renogy.com/content/RNG-DCC1212-20-BC/DCC1212-204060-Manual.pdf)) DIP switches for battery type, Vabs and Vfloat. [[https://www.renogy.com/content/RNG-DCC1212-20-BC/DCC1212-204060-Manual.pdf|manual]] (pdf)
   * DCC-series of voltage sensing b2b chargers in [[https://amzn.to/2NGIP6U|20A]] and [[https://amzn.to/33HJ8ns|40A versions]].
-  * DCC50S [[https://amzn.to/2QYuswm|50A model with MPPT charging]]. MPPT input limited to 25v.((per the manual)) - [[https://www.renogy.com/content/RBC50D1S-G1/RBC50D1S-G1-Manual.pdf|manual]] (pdf)  This model appears to be 25A MPPT and 25A alternator charging.
+  * DCC50S [[https://amzn.to/2QYuswm|50A model with MPPT charging]]. MPPT input limited to 25v.((per the manual)) - [[https://www.renogy.com/content/RBC50D1S-G1/RBC50D1S-G1-Manual.pdf|manual]] (pdf)  The 50A may refer to 25A MPPT and 25A alternator charging.((manual suggests 50A max indivudiually -- FIXME))
@@ Line 82: / Line 84: @@
 ==== Ring Automotive ====
-Ring makes [[https://www.ringautomotive.com/en/product/RSCDC30|a 30A DC-DC charger]].
+Ring makes [[https://www.ringautomotive.com/en/product/RSCDC30|a 30A DC-DC charger]] with 50v max input MPPT. ([[https://www.ringautomotive.com/files/mydocs/RSCDC30%20Instructions.pdf|manual]])
 ==== Kisae ====
@@ Line 90: / Line 92: @@
 Customer support is generally regarded as excellent.
+An [[https://www.sportsmobileforum.com/forums/f20/installing-a-kisae-dmt-1250-dc-to-dc-charger-24264.html|extensive write-up]].
+==== FlexCharge ====
+The [[https://amzn.to/38399Ak|FlexCharge NC25a-12]] is a 25A charger that claims exceptional efficiency((http://www.flexcharge.com/nc25a.htm)), the ability to dump loads, and [[http://www.flexcharge.com/charging%20explained.htm|a proprietary charging algorithm]].

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