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Home >> Mercedes Benz >> 2012 >> CL65 >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System -- Testing & Repair -- Cl65 AMG (216.379) >> Testing & Repair >> Charge battery as of 2-6-2008 - AR54.10-P-1130SY

Charge battery as of 2-6-2008 - AR54.10-P-1130SY

MODEL 216.3 as of 2.6.08 

MODEL 216.3 with CODE (809) Model year 2009 

Shown on model 221 

Fig 1: Charging Battery - Shown On Model 221
G07516781Courtesy of MERCEDES-BENZ USA
INSPECT Checking     
1 Check condition of battery   AR54.10-P-1129SY 
REMOVING Removing     
2 Remove cover of engine compartment prefuse box (F32/3)    
  Charging     
3 Connect charger positive terminal (1) to charging terminal point (4) of engine compartment prefuse box (F32/3)    
4 Connect charger ground terminal (2) to ground terminal point (3) on wheel well and switch on charger NOTES Do not connect with incorrect polarity, risk of short-circuit.
IMPORTANT Use a charger with at least 30 A charging current and 13.5 V charging voltage, otherwise the on-board electrical system battery could be partially discharged.
 
5 Charge on-board electrical system battery (G1) IMPORTANT Discharged AGM batteries which have a voltage below 7 V may not be "recognized" depending on the type of charger. A second charged battery (with a rated voltage of 12 V) must therefore be connected in parallel to the AGM battery before charging.
Normal charging: Charging current max. 10 % of battery capacity: e.g. max. 10 A charging current for a 100 Ah battery.
Rapid charging: charging current max. 50 % of battery capacity for 30 min: e.g. max. 50 A charging current for a 100 Ah battery.
 
6 Disconnect battery charger NOTES Always switch off charger beforehand in order to prevent arcing.  
INSPECT Checking     
7 Check battery after charging   AR54.10-P-1129SY 
INSTALLING Install     
8 Install cover of engine compartment prefuse box (F32/3)