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electrical:12v:b2b [2018/12/28 13:19]
frater_secessus [Sterling] |
electrical:12v:b2b [2018/12/28 14:32]
frater_secessus [CTEK D250 series] |
| The [[https://amzn.to/2TozjWu|SmartPass accessory]] bypasses the D250SA when the house battery wants > 20A of current. This will generally happen in the first half of Bulk mode. When the house battery demand drops below 20A control is handed back to the D250SA for boosting 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]] bypasses the D250SA when the house battery wants > 20A of current. This will generally happen in the first half of Bulk mode. When the house battery demand drops below 20A control is handed back to the D250SA for boosting to Absorption voltage.((https://www.4x4community.co.za/forum/showthread.php/292297-Ctek-250-upgrade-to-smartpass?p=3823781#post3823781))\\ |
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| 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)) | 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)) It requires >= 80w of solar for reliable solar charging.(())(()) There are reports that the MPPT algorithm is not particularly robust and is better thought of as an add-on for the alternator charging circuit.((https://expeditionportal.com/forum/threads/ctek-250s-poor-solar-performance.198052/)) FIXME |
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| ===== Sterling ===== | ===== Sterling ===== |
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| The Sterling Pro Batt Ultra series is alternator-charging only, but can be configured to exact [[electrical:solar:charge_controller_setpoints|setpoints]]. The BB1260-12 is a 30A example and costs about $50 more than the D250S above. | The Sterling Pro Batt Ultra series is alternator-charging only, but can be configured to exact [[electrical:solar:charge_controller_setpoints|setpoints]]. The BB1260-12 is a 30A example and costs about $50 more than the D250S above. |
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| Sterling chargers have a 15min/20min on/off cycle to protech alternators from overheating.((https://battlebornbatteries.com/sterling-pro-batt-ultra-battery-battery-charger/)) | |
| ===== Redarc ===== | ===== Redarc ===== |
| [[https://amzn.to/2VgTre7|{{ https://images-na.ssl-images-amazon.com/images/I/417F858GCdL._AC_US218_.jpg}}]] | [[https://amzn.to/2VgTre7|{{ https://images-na.ssl-images-amazon.com/images/I/417F858GCdL._AC_US218_.jpg}}]] |
| Redarc makes [[https://amzn.to/2VgTre7|a 25A b2b charge with MPPT]] similar to the CTEK. | Redarc makes [[https://amzn.to/2VgTre7|a 25A b2b charge with MPPT]] similar to the CTEK. |
