CTEK 56-353 User Manual

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US • 7

Caution: If the MULTI US 7002 does not switch to maintenance charge mode after three

days, manually switch it to pulse maintenance mode.

Note: A battery that hasn’t changed to maintenance charge after three days is most likely

wornoutandneedstobereplaced.Allotherbatteriescanbemaintainedforaverylong

time.

BATTERY TYPES AND SETTINGS

MULTIUS7002caneasilybesetfordifferenttypesofbatteriesorconditions.Thefollow-

ing recommendations should, however, only be seen as guidelines. Please consult the

battery manufacturer for further instructions.

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time until the required mode is reached, the button is then released. After about 2 seconds

thechargeractivatestheselectedmode.Theselectedmodeissavedinamemoryinthe

charger and remains there even if the charger is switched off.

NORMAL

Mode 14.4V - Normal setting for wet batteries, maintenance free and for

mostGelbatteries.SomeGelbatteriespreferaslightlylowerchargingvolt-

age. Please consult the battery manufacturer when in doubt.

Mode 14.7V -Thissettingisrecommendedforabatteryattemperatures

< 41°F. It is also recommended for many AGM batteries like Optima, and

Odysseys. Consult your battery manufacturer when in doubt.

SUPPLY

Mode 13.6V / Supply -Thechargerisoperatingataconstantvoltageof

13.6V. This is the maintenance mode for applications where maximum ca-

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that the Spark protection function is suppressed in this mode.

RECOND

Mode 15.7V / 1.5A / 0.5–4h -Thismodeisusedtorecoverdeepdischarged

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in the bottom, low on top). This mode will also recover some spiral cell AGM

batteries that has been deep cycled. Check with battery manufacturer when

in doubt.

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because the high voltage will cause some water loss. 16V is normally no

problem for electronics, but consult your supplier when in doubt. Life of light

bulbs will be reduced at higher voltage. Try to avoid using 12V light from the

batteryduringthisphase.Maximumeffectandminimumriskforelectronics

is achieved by charging a disconnected battery.

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CTEK 56-353 Battery Charger