BYD e2 Owner's Manual page 171

170 6-1 Maintenance
Tip
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In order to ensure the power battery under best conditions, it should be fully charged
and discharged regularly(once every at least 6 months or or 72000km) to achieve its
self-correction; or contact BYD service Authorized Service Station for its capacity
test and calibration.
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The meanings of the symbols in the table:
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I = Check, adjustment or replacement if necessary;
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I= Added items in harsh conditions;
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R= Replacement
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The maintenance items shall be added as per the maintenance schedule under severe
working conditions. The severe working conditions refer to:
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The car are often driven in dusty areas or are often exposed to the salty air.
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The car is always driven on bumpy roads, watery roads or mountain roads.
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The car is often driven in cold areas.
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The motor is often maintained at idle for a long time or the car is often driven at
short distances during the cold season.
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Frequently use the brake and emergency brake.
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The car is often used to tow a trailer.
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The car is used as a taxi or business car.
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The driving time at temperature of above 32℃ and in overcrowded urban area
exceeds 50% of total driving time.
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The driving time under >30ºC temperature at 120km/h or higher speed exceeds
50% of total driving time.
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The car is always overloaded.
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Required maintenance records:
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It is recommended that BYD Auto Authorized Service Station fill in all required
maintenance records in the form and keep all receipts for the maintenances of
your car.