
Check battery status and charge through a vehicle’s live 12V accessory socket with the CTEK Comfort Indicator Cig Plug (MFG PN 56-870). The built-in Comfort Indicator shows the battery’s condition while the plug provides a convenient connection for compatible CTEK chargers. It fits easily in a glove box or center console and is listed for CTEK US 0.8, MUS 3300, MUS 4.3, 4.3 Test & Charge, 4.3 Polar, MXS 5.0, CT5 Time To Go, and MUS 7002 chargers; the vehicle socket must remain powered with the ignition off for charging.
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