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And the point of this discussion is ?

All the $60 or so battery specs I looked at on Amazon all use the same low rate cells. 20A max with some with 40A peak with the smallest BMS / PCB. None of these would work in an EV or any car in my opinion (after 12 years of being involved in the Li battery business ). And, Amazon return policy...

Adding cost of battery tender puts the lead acid battery near price of a lithium - $250 with free shipping https://www.lithiummoto.com/12v-ev-lithium-battery and includes bluetooth ( other guys $265 + 19 ship ) = $284 No tender needed with lithium. I work at an auto parts store and the average...

The only reason I can think of to use lead over lithium is upfront cost. $200 vs $250 . This is short term thinking that is more expensive in the long run. I rarely hear of anyone willing to spend the extra $50... it's crazy.

overcharging ? ... overcharging a lead acid produces hydrogen gas, so, you have a choice; fire or explosion ! ha

my 2019 leaf's battery wont hold a charge, so, I looked at Napa agm, $228 + tax = $244 with 3 yr warranty vs a LiFepo4 from LithiumMoto for $250 with 4 yr warranty.

You can try one from LithiumMoto, they are still in business.

Here you go, $20 + postage on LithiumMoto.com charger page

Would being able to disconnect the LVB be useful so that it doesn't drain ??

Here's another graph from results on a Lithium battery from Lithiummoto.com and its hard to decipher what the car is trying to do to the 12V battery.

I work in an auto parts store. The average end of life of a flooded battery is 3 yrs and starts to degrade after 2 years. People that get more than 4 years are living on borrowed time.

This one does the same thing for $29

that amazon page lists jump starters from $30 to $200... which one ?

Yea, its 3 yrs old, but, i couldnt help it. I just saw this and felt compelled to correct the last poster as someone online might read it. And, AG's batteries are STILL made in china, as opposed to one I saw that are made in USA; LithiumMoto.

Here is a good battery monitor i use via bluetooth - $29

That brand battery IS made in China ! Why dont you get one made in USA ???

I think everyone would benefit from using a battery checker. I use this one - $30 it measures the impedance.

flooded batteries are designed to fail. I dont know why they keep being sold, yes i do.. It keeps people constantly coming back to the stores to buy another and another, they're cheap and thats what the majority of people want. AGM will last a little longer, Lithium longer still, but, they cost...

still more expensive than the alternative LFP

In my experience, a ' self heating battery ' cant generate sufficient heat for a long enough time without draining it. Those that supposedly heat during charging, are still cold before it gets charged, thus, per the BMS dont get charged until a lengthy time period after 'starting' the car for...