I think you may be confusing these with something else. If you have a link to the explosion please post it.
All rechargable Li-Ion batteries have about half the capacity if Lithium Thionyl Chloride aka Primaries.
Perameters for the batts I linked to NOT the charger wich includes a typo.
RCR123A Features:
Rechargeable CR123A Li-Ion Batteries with 3.0V working voltage and 900mAh capacity.
Fully protected against over-charge, over-discharge, over-current and short-circuit.
Tenergy RCR123A can be recharged up to 1000 times. 1 RCR123A Li-ion = 1000 CR123A Primary Cells
Replace the most of non-rechargeable CR123A primary Lithium battery for a digital cameras and flashlight
Modified Voltage to achieve 3.2v at full voltage; once loaded, cell voltage drops to 3.0v.
Internal over-charge and over-discharge protection to prevent battery over use. The current will be shut off when the battery voltage drops below 2.5V.
Internal Voltage Regulators.
Dimension: 16 D x 34 H mm. (The height 34mm includes the button top).
Weight: 17 g or 0.6 Oz.
Tenergy Li-Ion RCR123A 900mah batteries reach more than 3.0v at full charge. These cells should only be used in high quality CREE LED flashlights. Not compatible with Surefire and other brands of incandescent (halogen, krypton, xenon, etc) flashlights.
Note*: Not compatible with Surefire type Flashlights.
Can replace the disposable (one-time use) version of CR123A Lithium Primary Batteries.
CR123A Also Known As:
123, 123A, 123-SANYO, 5018LC, 6205, BR2/3A, CR123, CR123-2, CR123-A, CR123A, CR123A-2, CR123R, CR-123, CR17335, CR17345, DL123, DL123A, DL123A2, DL123AB, DL-123, DL-123AB, DLCR123, EL123, EL123A, EL123AP, EL123-AP, EL123AP2, EL123AP-2, K123, K123A, K123LA, K123LA-1, L123A, PL123, PR123-1, PR123-2, PRCR123-1, PRCR123-2, RL123A, RL123A-1, RL123A-2, SF123, SF123A, SF123A1, ULCR123R, VL123, VL123A