PILA batteries are Lithium Ion rechargeable cells that can replace 123A lithium disposable cells. They make two versions - the P version which is designed specifically for Pila brand lights, and an S version which works in many other brands of lights. 600S or 600P replaces two 123A cells, while two 300S or 300P replaces three 123A cells.

The cells are about 4.2 Volts each, so 6V lights (2 cell) are driven at 4.2V, and 9V lights (3 cell) are driven at about 8.4V. In regulated lights you will often get the same output as when using 123A cells. Unregulated lights tend to be a little dimmer than normal.

The advantage here is great savings compared to using disposable 123A cells.

The table below lists compatibility between various lights I have tested and the Pila cells. Please see the PILA review for more information about these batteries.

Note that the 600 series was previously named "168" and the 300 series was previously named "150". The cells were upgraded to higher capacity in late 2005.

Fits = Pila batteries fit in the light body tube. Works = Light operates with the Pila batteries installed, but output may be reduced.

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Flashlight	#LEDs / Bulb type	Battery type / quantity	Pila Equivalent	Fits?	Light Works?	Same Output as 123A?
Brinkmann Legend LX	Xe	123A x 2	600S	Y	Y
Dorcy Spyder	Xe	123A x 2	600S	Y	Y
Pelican M6	Xe	123A x 2	600S	Y	Y
Streamlight Scorpion	Xe	123A x 2	600S	Y	Y
Streamlight Tactical TL-2	Xe	123A x 2	600S	Y	Y
Streamlight Tactical TL-3	Xe	123A x 3	300S x 2	Y	N
Streamlight NightFighter 2	Xe	123A x 2	600S	Y	Y
Surefire E2	Xe	123A x 2	600S	Y	Y**
Surefire G2	Xe	123A x 2	600S	Y	Y
Surefire C2 Centurion	Xe	123A x 2	600S	Y	Y
Surefire M2 Millennium	Xe	123A x 2	600S	Y	Y
Surefire M3 Millennium Combat	Xe	123A x 3	300S x 2	Y	Y*
UK 2L	Xe	123A x 2	600S	Y	Y
Streamlight TwinTask 2L	x 3, Xe	123A x 2	600S	Y	Y
Surefire A2 Aviator	x 3, Xe	123A x 2	600S	N3
XenErgy 3-in-1	x 6, Xe	123A x 2	600S	Y	Y
LedXtreme Predator	x 1	123A x 2	600S	N3
Pelican M6 LED	x 1	123A x 2	600S	Y	Y
Streamlight Tactical TL-2 LED	x 1	123A x 2	600S	Y	Y
Streamlight Tactical TL-3 LED	x 1 (Lux 5)	123A x 3	300S x 2	Y	N
Surefire L4 Digital Lumamax	x 1 (Lux 5)	123A x 2	600S	Y	Y	Y
Surefire KL1 Module	x 1	123A x 2	600S	Y	Y	Y
Surefire KL3 Module	x 1	123A x 2	600S	Y	Y	Y
Litepro Light Rover	x 1	123A x 2	600S	Y	Y
Surefire L5	x 1 (Lux 5)	123A x 2	600S	Y	Y	Y
Nuwai ALX-053L	x 1 (Lux 5)	123A x 3	300S x 2	N2
Inova XO	x 1	123A x 2	600S	Y1	Y
Inova XO³	x 1 (Lux 3)	123A x 2	600S	Y1	Y
Inova T2	x 1	123A x 2	600S	Y1	Y
Inova T3	x 1 (Lux 3)	123A x 2	600S	Y1	Y
Surefire KL1 gen2	x 1	123A x 2	600S	Y	Y	Y
Streamlight Tasklight 2L	x 1 (Lux 3)	123A x 2	600S	Y1	Y**
Nuwai TM-115X	x 1 (Lux 3)	123A x 2	600S	Y	Y**
Nuwai TM-116X	x 1 (Lux 5)	123A x 2	600S	Y	Y
Surefire L2	x 1 (Lux 5)	123A x 2	600S	N3
Vital Gear F2	Xe	123A x 2	600S	Y¹	Y
Streamlight TL-2 LED gen2	x 1	123A x 2	600S	Y	Y	-20%
Nuwai ALX-352L	x 1 (Lux 5)	123A x 2	600S	Y	Y**
Nuwai ALX-032L	x 1 (Lux 3)	123A x 2	600S	Y	Y**	Y
Nuwai ALX-512L	x 1	123A x 2	600S	Y	Y**	Y
NightCutter P20	x 1	123A x 2	600S	Y1	Y
NightCutter 3C	x 3	123A x 2	600S	Y1	Y
NightCutter M60L	x 1	123A x 2	600S	Y	Y
BugOutGear P60 Luxeon 3	x 1 (Lux 3)	123A x 2	600S	Y	Y
Nuwai TM-301X-3	x 1 (Lux 3)	123A x 2	600S	Y1	Y
Surefire U2 Digital Ultra	x 1 (Lux 5)	123A x 2	600S	Y	Y***	Y
EssentialGear 3W	x 1 (Lux 3)	123A x 2	600S	N3
Streamlight ArgoHP	x 1	123A x 2	600S	Y1	Y
Streamlight Scorpion LED	x 1	123A x 2	600S	Y	Y	-20%
Surefire KL3 gen2	x 1 (Lux 3)	123A x 2	600S	Y	Y	Y
Advancedmart Quake2	x 19	123A x 2	600S	N3
Nuwai ALX-332L	x 1 (Lux 3)	123A x 2	600S	N3
Nuwai ALX-253L	x 1 (Lux 5)	123A x 3	300S x 2	Y	N²
Likki SL-13	x 1 (Lux 5)	123A x 2	600S	N3
Nuwai TM-301X-5	x 1 (Lux 5)	123A x 2	600S	Y1	Y	-40%
NightOps Gladius	x 1 (Lux 3)	123A x 2	600S	Y	Y	Y
VariBrite 32L	x 1 (Lux 3)	123A x 2	600S	Y	Y	Y
VariBrite 52L	x 1 (Lux 5)	123A x 2	600S	Y	Y	-10%
Pelican M3	x 1 (Lux 5)	123A x 3	300S x 2	Y2	Y**	Y
Pelican M6 HA	x 1 (Lux 3)	123A x 2	600S	Y1	Y	-10%
Striker VG	x 1 (Lux 3)	123A x 2	600S	Y1	Y**	Y
BugOutGearUSA 5W	x 1 (Lux 5)	123A x 2	600S	Y	Y	-25%
WolfEyes Eagle 3AX	Xe	123A x 3	300P x 2	Y4	Y	-10%
WolfEyes Eagle 3AX	Xe	123A x 3	300S x 2	Y4	Y	-25%

¹ Very tight fit - may or may not work
² Too long for the light to close properly
³ Pila cell is too wide
⁴ Dents the + side of one Pila battery slightly

* Requires a special spring to function - see PILA review
** Requires a Radio Shack part # 64-1895 (1/8" rare earth disk magnet) be attached to positive terminal of battery to work.
*** Must be inserted from the HEAD end of the flashlight, not the tailcap end.

Note that the information contained in this table is not a guarantee of compatibility.