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Service Bulletin #RL0305-07
Technical Service Bulletin
Date: June 04, 2003
Product Model: RL550/800/850
Serial Range: Beginning IRL03…
Part Number: Robomower
Countries Affected: All
2003 RL550/RL800/RL850 Operating Manual Addendum
The 2003 Owner’s Operating Manual indicates that a text message, ‘Ready- Keep
Charging’ will appear on the LCD screen of the manual controller when the Power Pack is
fully charged and ready for use. This typically occurs in approximately 24 hours,
depending on state of charge when connected to the Robomower.
Please note that in some circumstances, the ‘Ready-Keep Charging’ message may not
appear in this time frame, and may in fact not appear for a number of hours later. The
message, ‘Charging’, will continue to display. However, at the 24-26 hour time
frame the Power Pack is fully charged and ready to be used even if the
‘Ready-Keep Charging’ message does not display.
The message of ‘Ready-Keep Charging’ a result of various factors in the charging process,
but has little impact from the current voltage level of the Power Pack. A variety of issues can
delay the display of the message, such as ambient temperature and voltage output from the
home receptacle. In any event, after approximately 24 hours of charging in the Robomower,
the Power Pack is fully charged and ready to be used.
If the message of ‘Ready-Keep Charging’ is not displayed at all and ‘Charging Failure’
message is intermittently displayed while the mower is in charging, the S/W version of this
Robomower should be replaced with an updated version (P/N PRG0005A - 3.2i - Apr 29,
2003). Call Friendly Customer Support to receive the most updated S.W. version.
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