Philips OnSite/FRx Replacement Aviation Battery.
The Aviation Battery meets the specifications of the Four Year Battery and the FAA TSO C-142 regulation for use on commercial aircraft. Has Philips' 4-year warranty and 200+ shock capacity. This 9 Volt DC, 4.2 Ah FRx battery is a non-rechargeable, lithium manganese dioxide, long-life primary cell battery.
Alternate PN: FME-19295