[EricH]

Yes.

<R48> The ES17-12 shall only be charged between MATCHES by a 6-ampere rated automatic battery charger. When recharging the Kit Of Parts batteries, either the charger provided by FIRST or an automatic charger with an equivalent charging current rating may be used.

Make that yes for both batteries:

<R49> The 7.2v backup battery may be charged on or off the ROBOT. When off the ROBOT, the battery is to be charged with a 7.2V backup battery charger. When mounted on the ROBOT, the backup battery may be charged from the 12VDC primary battery by using the custom charging circuit available from Innovation First Inc. or any similar charging circuit (note: IFI will provide the design for this circuit on the IFI website, however teams must obtain the parts for this circuit and assemble it themselves). The use of this circuit is strongly encouraged.