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electrical:12v:b2b [2020/06/23 14:29] frater_secessus [Ring Automotive] |
electrical:12v:b2b [2020/07/04 13:23] frater_secessus [CTEK D250 series] |
==== CTEK D250 series ==== | ==== CTEK D250 series ==== |
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The most common b2b charger with 'dwellers is the [[https://amzn.to/2RY2GNQ|CTEK D250SA]], a 20A solar/alt controller. It has connections for both alternator and solar panel input + MPPT function, although the MPPT algo may not be partcularly robust. | The most common b2b charger with 'dwellers is the D250 series, all of which are 20A smart chargers with integrated MPPT: |
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| * D250 (pre-2018, discontinued) - the original, Vabs == 14.4v. |
| * [[https://amzn.to/2RY2GNQ|CTEK D250SA]], a 20A solar/alt controller. Vabs selectable 14.4v and 14.7v. Added support for smart alternators. |
| * [https://amzn.to/2VNkfou|D250SE]] and [[https://amzn.to/2Aw56As|Smartpass 120S]] which have lithium settings. |
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House and starter batteries are combined when the starter battery holds >13.1v for 5 seconds.((https://www.ctek.com/storage/C1493FC8638168601722950C8151FF6A802476C93EC460B3BC5323C8A7951C71/9fde706a812c451ebc7257ab76e05cdb/pdf/media/ac7a2dfdc9104b30939287bdb76b81fb/D250SA-manual-low-UK-EN.pdf)) The batteries are isolated when the starter battery is "<12.8V, for 10 sec... or service battery voltage > starter battery voltage". | House and starter batteries are combined when the starter battery holds >13.1v for 5 seconds.((https://www.ctek.com/storage/C1493FC8638168601722950C8151FF6A802476C93EC460B3BC5323C8A7951C71/9fde706a812c451ebc7257ab76e05cdb/pdf/media/ac7a2dfdc9104b30939287bdb76b81fb/D250SA-manual-low-UK-EN.pdf)) The batteries are isolated when the starter battery is "<12.8V, for 10 sec... or service battery voltage > starter battery voltage". |
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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)) |
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==== Sterling ==== | ==== Sterling ==== |
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An [[https://www.sportsmobileforum.com/forums/f20/installing-a-kisae-dmt-1250-dc-to-dc-charger-24264.html|extensive write-up]]. | An [[https://www.sportsmobileforum.com/forums/f20/installing-a-kisae-dmt-1250-dc-to-dc-charger-24264.html|extensive write-up]]. |
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| ==== FlexCharge ==== |
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| 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]]. |