Car batteries and recharging after starting

[rei]

You may also be interested in this thread I started in January, in much less pandemicky times:

Car battery boosters:

AMA/CAA/AAA must be losing business to everyone being able to get a tiny $20-50 portable Li-ion booster pack for the car that also doubles as a USB charger for devices. The last booster pack (the ones that have handles usually) I bought 5+ years ago wouldn’t hold a charge after not following its recharge-monthly battery conditioning charging recommendations. Must have been Ni-Cad or NiMH in that pack. I mention all this because my car wouldn’t start this morning because I forgot to plug the bl…