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electrical:12v:b2b [2020/06/23 13:44]
frater_secessus [Renogy]
electrical:12v:b2b [2020/07/03 19:15]
frater_secessus [CTEK D250 series]
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 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))\\ 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].  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]. 
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 > 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)) > 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 ==== ==== Sterling ====
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 ==== Ring Automotive ==== ==== 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 ==== ==== Kisae ====
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 Customer support is generally regarded as excellent. 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]].
electrical/12v/b2b.txt ยท Last modified: 2024/06/02 20:28 by frater_secessus