Do I Have To Disconnect Car Battery To Charge It. Ive searched the internet and even phoned BMW directly but cant seem to get a straight answer. Before I purchase the CTEK CT5 charger can you confirm that I dont need to disconnect the battery from the car and I can just attach the charger.
Hence leaving your car battery for a longer time could lead to unnecessary expense. Agreed car batteries do not like the cold. Make sure everything electric is switched off - apart from the security system.
Hence leaving your car battery for a longer time could lead to unnecessary expense.
This is particularly important when trying to get a drained battery to start. Identify the battery terminal marked often coloured red and the negative battery terminal marked - often coloured black or blue. If you have to remove your car battery to replace it or to assess corrosion damage its important to know how to disconnect car battery cables and clamps safely. If it gets too cold the battery will cease holding charge at all.
