Lithium Battery Question
I am thinking about converting my 2020 lance to Lithium batteries. I want to do it as inexpensively as possible. (Battle Born ain't gonna happen) Can anyone tell me what specifications I should look f...
Forum Discussion
Back now from our overnight holiday trip, I disconnected the camper’s electrical cord from the truck bed...I also shut down the solar to ensure that there are no other charging sources, then using the PD in boost, brought the LiFePO4 up to a full charge as demonstrated by * 14.3v (holding constant), and zero current into the battery...At the end, the SOC read 96% indicating yet another period of meter drift from the previous synchronization...
*On a side note, as the battery was completing it’s charge I monitored the LinkLite meter carefully and watched the voltage now ‘exceed’ it’s former historical top limit of 14.2v to what’s now become 14.3v (yet verified to be the same ‘no change’ 14.3v at batt terminals - note, batt & meter shunt are about 12’ away from PD charger), thus, the LinkLite’s previous voltage read-out had most likely been running on the ‘ragged cusp’ of things nearer to 14.3...
Anyway, almost immediately after reaching a full charge I could ‘twice see’ the current and voltage ‘momentarily cycle’ from zero amps/14.3v to about 5.5a/13.9v (per LinkLite) only to (after each rapid cycling...) quickly return to zero amps/14.3v and holding ...Per previous evaluations, this seems to be a ‘tell-tale’ sign of end-of-charge BMS cell balancing - thereafter (PD charger still in boost mode) both current and voltage continued to hold FIRM at zero amps/14.3v to denote the completion of this balancing act...
But back now to resolve a previous question...With both other power sources disconnected (solar and truck battery), and battery fully charged and holding at 14.3v/zero current, I suddenly pulled the shore power cord only to note that there was no BMS caused battery interruption in 12v camper power whatsoever - To be sure I revisited this test three separate times, all having the same results, though I’m not all too sure why this ‘seamlessness’ takes place?
3 tons
*On a side note, as the battery was completing it’s charge I monitored the LinkLite meter carefully and watched the voltage now ‘exceed’ it’s former historical top limit of 14.2v to what’s now become 14.3v (yet verified to be the same ‘no change’ 14.3v at batt terminals - note, batt & meter shunt are about 12’ away from PD charger), thus, the LinkLite’s previous voltage read-out had most likely been running on the ‘ragged cusp’ of things nearer to 14.3...
Anyway, almost immediately after reaching a full charge I could ‘twice see’ the current and voltage ‘momentarily cycle’ from zero amps/14.3v to about 5.5a/13.9v (per LinkLite) only to (after each rapid cycling...) quickly return to zero amps/14.3v and holding ...Per previous evaluations, this seems to be a ‘tell-tale’ sign of end-of-charge BMS cell balancing - thereafter (PD charger still in boost mode) both current and voltage continued to hold FIRM at zero amps/14.3v to denote the completion of this balancing act...
But back now to resolve a previous question...With both other power sources disconnected (solar and truck battery), and battery fully charged and holding at 14.3v/zero current, I suddenly pulled the shore power cord only to note that there was no BMS caused battery interruption in 12v camper power whatsoever - To be sure I revisited this test three separate times, all having the same results, though I’m not all too sure why this ‘seamlessness’ takes place?
3 tons
