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Battery Information
Battery Details

Do not confuse with AA also called Penlight by some manufacturers.

New Lithium types are available with considerably more capacity than the earlier Zinc and Alkaline types, but at a higher cost.

NiMH rechargeables are available in quite high capacities which will give long life but the voltage is .3 of a volt less per battery. This compounds with the more batteries used, for example: 6 × 1.5 (9 volts) becomes 6 × 1.2 = 7.2 volts.

Equivalents:

#7, 1.2H1, 3AAA, 24A, 24AC, 24AP, 24D, 24F, 24G, 24LF, 239, 286, 824, 912, 1212, 4003, 4103, 4203, 4703, 5503, 5703, 7526, 56703, 56763, AAA, AL-AAA, AM4, AM-4, AM4-PI, B24A, BA6107, DLR03/HD, E92, EN92, EV35, FR03, FR3, HD-AAA, HP16, HR03, K3A, K3AHZ, K795, L92, LFB10405, LR03, LR03X, LR3, Micro, Microlight, MN2400, MX2400, No.7, NH12, NM724, NX2400, PC2400, Penlight, PS-AAA, R3, R03, R03P, SP16, SUM4, T3, T18, T398, Triple A, Type 286, U16, UM4, UM-4, V0036, X92, X92RP, ZR03,

Image not to scale.	Common Name.	Dimensions. Length × Diameter.	Chemical Composition.	Nominal Voltage.
	AAA.	44.0 mm × 9.0 mm Contacts: Pip Positive. Flat end Negative.	Zinc Carbon Zinc Chloride Alkaline Lithium (Li-FeS2), NiCd NiMH	1.5 volts (1000 mAh). 1.2 volts (NiMH and NiCd).