I've been using this table for estimating remaining capacity by measuring the unloaded (resting) voltage with LiOn and LiPo for a while and find it very useful.
4.2V – 100%
4.1V – 87%
4.0V – 75%
3.9V – 55%
3.8V – 30%
3.6V – 0%
"Remaining capacity" will vary based on how hard you're pushing the cell under discharge compared to its capabilities. At low loads, <.5 A on RCR123, for example, you'll have more useable capacity left without damaging the cell than at much higher loads since the safe cutoff is based on the voltage under load and voltage droops less under low load than high load.
Does anybody have similar information for Lithium primary cells? I'm just looking for a rough guide.
Mike
4.2V – 100%
4.1V – 87%
4.0V – 75%
3.9V – 55%
3.8V – 30%
3.6V – 0%
"Remaining capacity" will vary based on how hard you're pushing the cell under discharge compared to its capabilities. At low loads, <.5 A on RCR123, for example, you'll have more useable capacity left without damaging the cell than at much higher loads since the safe cutoff is based on the voltage under load and voltage droops less under low load than high load.
Does anybody have similar information for Lithium primary cells? I'm just looking for a rough guide.
Mike
Last edited: