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Battery Information
Battery Details

FBA-15 and FBA-21 are battery holders that take 4 (15) or 6 (21) × AA batteries.

A word of caution about the Li-ion type: This should never be recharged with the standard Ni-Cd/Ni-MH charger as severe damage, fire or explosion can result. A proper Li-ion charger is available.

Equivalents:

AY-FNB40N, AY-FNB41, AYN-FNB41N, AY-FNB47, AY-FNB47-15, AY-FNB47N, AY-FNB49, FBA-15, FBA-21, FNB-40, FNB-41, FNB-41H, FNB-41M, FNB-41-ACS, FNB-41XS, FNB-42, FNB-47, FNB-47A, FNB-47H, FNB-47Li, FNB-49, FNB-49H, FNB-V49, FVB47, MHFNB41, MHFNBV47, WWH-FNB40S, WWH-FNB41, WWH-FNB47, WWH-FNB47A, WWN-FNB40, WWN-FNB40S, WWN-FNB41, WWN-FB47,

Image
not to scale. 		Common
Name. 		Dimensions.
Height × Width × Length. 		Chemical Composition. Nominal Voltage.
battery FNB-40. 99 mm × 57 mm × 22 mm (approx). Shaped to fit the rear of compatable Yaesu handhelds.

Contacts:
Recessed for pins on equipment, battery will only fit 1 way.

The various packs give differing voltages and capacities affecting output power and useage time.

Ni-Cd,

Ni-MH,

Li-ion.

6 volts, FNB-40,

7.2 volts FNB-47,

7.4 volts FNB-47Li,

9.6 volts FNB-41 & FNB-42.

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