Li batteries at 48vdc
After much deliberation and questions, I'll likely be purchasing the 48v Lithium battery pack instead of 4-12v. I liked the idea of 12v batteries for weight and ease of handling, but the possible cel...
Forum Discussion
Yes boost converter raises voltage but lowers the amps. I see in Wiki they use boost converters in those new electric cars.
This all reminds me of the "trouble with Gel batteries in RVs" where the charging requirements are too strict and fussy for most chargers or converters.
Does the 55 volt input needs a lab level DC power supply that holds its voltage exactly?
My adjustable voltage charger is pretty good, but I noticed in cold temps it has less voltage for the amount of pot turn. That is, you set to the 13.6 mark that you made at 70F and it only does 13.4 or whatever at 35F. So you have to tweak the pot up to get 13.6 at 35F. Which is no big deal for me, but what would that be like with an Li ?
Also the Outback has temp comp IIRC. If temp comp then is the right comp for the Li? I notice that temp comp has different baselines depending on which one. The Paramode uses 60F as its baseline while some other chargers and controllers use 77F, same as battery voltages etc.
Just how strict does that 55 have to be in all temp ranges? If you did find a DC supply that you can set at 55v, how much of a precision instrument would it have to be and could you afford it? What happens to the DC voltage output if 120v input drops? On campground shore power?????
Is the Outback that accurate in all circumstances when you set a voltage?
Li = Gel? Run away?
This all reminds me of the "trouble with Gel batteries in RVs" where the charging requirements are too strict and fussy for most chargers or converters.
Does the 55 volt input needs a lab level DC power supply that holds its voltage exactly?
My adjustable voltage charger is pretty good, but I noticed in cold temps it has less voltage for the amount of pot turn. That is, you set to the 13.6 mark that you made at 70F and it only does 13.4 or whatever at 35F. So you have to tweak the pot up to get 13.6 at 35F. Which is no big deal for me, but what would that be like with an Li ?
Also the Outback has temp comp IIRC. If temp comp then is the right comp for the Li? I notice that temp comp has different baselines depending on which one. The Paramode uses 60F as its baseline while some other chargers and controllers use 77F, same as battery voltages etc.
Just how strict does that 55 have to be in all temp ranges? If you did find a DC supply that you can set at 55v, how much of a precision instrument would it have to be and could you afford it? What happens to the DC voltage output if 120v input drops? On campground shore power?????
Is the Outback that accurate in all circumstances when you set a voltage?
Li = Gel? Run away?
