The Tesla uses its own heater to keep em warm. It takes it from the
charge or charging station
On 1/21/19 1:54 PM, [email protected] wrote:
I wonder how my car does it. It does not have battery heaters but I
have had plenty of 0F days lately and it charged.
*From:* Robert
*Sent:* Monday, January 21, 2019 12:36 PM
*To:* [email protected]
*Subject:* Re: [AFMUG] Front Mount Telecom batteries
I agree with all this but I will put in one more MAJOR con.. You
cannot charge Lithium if the battery is at or below freezing. Hocus
Pocus No No... Battery must be above 0 degrees C. If I could
guarantee that in my configurations I would bite the price bullet in a
second.
On 1/21/19 11:23 AM, Adam Moffett wrote:
Pros:
Compared to lead-acid, Lithium gives you about 3x the energy per unit
of mass, and about 5x the energy per unit of volume.
Lithium has more endurance for charge/discharge cycles than lead-acid.
Cons:
Lithium costs 5x more per unit of energy than lead-acid.
Many industrial and telecom chargers don't support Lithium, you have
to check each time whereas you can assume they support lead-acid.
I also wonder if higher energy density means greater risk of thermal
overrun.
If you're going to be discharging frequently and have size and weight
limitations (like mobile devices) then Lithium makes perfect sense.
As a backup battery I don't see any advantages that actually matter
to me. It only discharges during a power outage, and I'm usually
more sensitive to cost than to size and weight.
YMMV
On 1/19/2019 4:41 AM, TJ Trout wrote:
Anyone using lithium batteries?
On Sat, Jan 19, 2019, 1:35 AM TJ Trout <[email protected] wrote:
Looking for 48v string about 100ah in a 19in rack, usually use
100ft red from Northstar but looking for alternatives.
What brand of rack are you guys using and what types of batteries?
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