IMR "safe chemistry" batteries

 
IMR batteries are often referred to as "safe chemistry" batteries as they are a different chemical composition to standard Li-Ion batteries, with lower internal resistance, and should be able to deliver a higher current while maintaining their capacity and avoiding thermal build up.



Here are some 18650 IMR batteries tested at constant 1A, 5A and  10A discharge (click on the graphs to enlarge):

SenyBor IMR 2250mAh

Internal Resistance mΩ Actual Capacity(mAh) Length (mm) Diamater (mm) Weight (g)
46 2278 67.3 18.6 43

AW IMR 2000mAh


Internal Resistance mΩ Actual Capacity(mAh) Length (mm) Diamater (mm) Weight (g)
50 1986 65.2 18.27 44

Efest IMR 2000mAh -->

Internal Resistance mΩ Actual Capacity(mAh) Length (mm) Diamater (mm) Weight (g)
85 2128 65.6 18.3 43

AW IMR 1600mAh

Internal Resistance mΩ Actual Capacity(mAh) Length (mm) Diamater (mm) Weight (g)
32 1485 64.75 18.23 43

Panasonic CGR18650CH
Internal Resistance mΩ Actual Capacity(mAh) Length (mm) Diamater (mm) Weight (g)
54 2239 64.92 18.25 42

Samsung INR18650-15Q

Internal Resistance mΩ Actual Capacity(mAh) Length (mm) Diamater (mm) Weight (g)
49 1495 64.7 18.14 42

Sanyo UR18650W2

Internal Resistance mΩ Actual Capacity(mAh) Length (mm) Diamater (mm) Weight (g)
42 1557 64.77 18.27 46
Efest IMR 1500mAh


Internal Resistance mΩ Actual Capacity(mAh) Length (mm) Diamater (mm) Weight (g)
40 1506 65.6 18.3 43


18350 Batteries
Torchy 18350 850mAh
Internal Resistance mΩ Actual Capacity Length (mm) Diamater (mm) Weight (g)
122 925 34.9 18.3 23g

AW IMR 18350 700mAh

Internal Resistance mΩ Actual Capacity Length (mm) Diamater (mm) Weight (g)
44 738 34.91 18.23 22

Efest IMR 18350 800mAh (Button top)
Internal Resistance mΩ Actual Capacity Length (mm) Diamater (mm) Weight (g)
44 738 34.91 18.23 22


14500 Batteries
Efest 14500 IMR 700mAh

Internal Resistance mΩ Actual Capacity(mAh) Length (mm) Diamater (mm) Weight (g)
43 647 50 14.3 19


 
26650 Batteries

Torchy 26650 4000mAh

Internal Resistance mΩ Capacity(mAh) Length (mm) Diamater (mm) Weight (g)
56 4192 65.6 26.3 95