Don,
? ?RC batteries aren't unsafe because they don't have an i ternal BMS. In RC use, management is split between the charger on the ground (charges, controls voltage and current, and balances). In the air, the speed controller monitors battery voltage and disconnects the load. The only weakness is cell level low voltage isn't monitored (though the low voltage disconnect is conservative for that reason).
(An example, not a recommendation)
My bench battery for the past 12 or so years was a 'naked' 4S 10 Ah LiFePO4 pack made from PSI cells. I didn't worry about low voltage monitoring because I seldom discharged to 50%. I connected to an analogue BMS when charging with my bench PSU.? I use LiCo pouches the same way.? Without automation, we become the management system - the battery is as dangerous as we are.
If their bulk works for the mission, tool packs do make things easy, tho - and using them definitely reduces the need to not touch batteries until after coffee!
Best, Andy
On Fri, Nov 25, 2022 at 09:11 AM, Don LeRoi wrote:
The common brick lithium battery packs are the least safe because they are very vulnerable to abuse.? That is:? over-charging, over-discharging, shorting, puncturing, and failure to balance the cells.
