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| australia:acdccharging [2026/11/10 05:01] – [Introduction] gary1 | australia:acdccharging [2026/11/10 05:05] (current) – [240V AC-DC chargers for 12V LiFePO4 batteries] gary1 |
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| =====240V AC-DC chargers for 12V LiFePO4 batteries===== | =====240V AC-DC chargers for 12V LiFePO4 batteries===== |
| *NB. these are NOT needed for power stations as these generally have a built in charger | *NB. these are NOT needed for power stations as these generally have a built in charger |
| *assuming you have a 100Ah LiFePO4 battery and you wish to charge it at the camp ground's laundry or other AC outlet and you don't want to be hanging around for many hours waiting for it to charge, then you should consider buying a high current (eg 25A) lithium charger albeit at higher cost, size and weight than low current chargers | *assuming you have a 100Ah LiFePO4 battery and you wish to charge it at the camp ground's laundry or other AC outlet and you don't want to be hanging around for many hours waiting for it to charge, then you should consider buying a high current (eg 25-50A) lithium charger albeit at higher cost, size and weight than low current chargers |
| *you do need to check the max. rated charge rate for the battery to avoid overheating and damaging it but nearly all 100Ah LiFePO4 batteries should easily take a 25-30A charge rate. | *you do need to check the max. rated charge rate for the battery to avoid overheating and damaging it but nearly all 100Ah LiFePO4 batteries should easily take a 25-30A charge rate. |
| *you can potentially use two chargers in parallel for faster charge rates (([[https://www.youtube.com/watch?v=zROCzxXbuNo]])) however this may cause problems particularly as the battery is getting to full and needs cell balancing. Chargers generally turn output off momentarily to check voltage of the battery and if there is another charger going then it may not get an accurate reading, thus having multiple chargers running is probably not recommended, especially if each charger is not isolated to back current from the other charger by use of a schotkey diode to ensure current only runs one way. Do this at your own risk and with care! | *you can potentially use two chargers in parallel for faster charge rates (([[https://www.youtube.com/watch?v=zROCzxXbuNo]])) however this may cause problems particularly as the battery is getting to full and needs cell balancing. Chargers generally turn output off momentarily to check voltage of the battery and if there is another charger going then it may not get an accurate reading, thus having multiple chargers running is probably not recommended, especially if each charger is not isolated to back current from the other charger by use of a schotkey diode to ensure current only runs one way. Do this at your own risk and with care! |
