Jeep CJ · Battery replacement
The right battery for your CJ, fitted where the car is, with the charging system tested before we sell you anything. Covers model years 1945-1986.
If your Jeep CJ needed a jump start this week, the useful question is not which battery to buy. It is whether the battery is the fault at all.
Stop-start Jeeps carry a small auxiliary battery alongside the main one, and a no-start with a healthy main battery is very often the auxiliary. On the CJ specifically, which the vehicle database lists across model years 1945 to 1986, the safe approach is to read the label on the battery that is in the car now and match its group size, terminal side and capacity — or to give us the year and let us look it up.
One loud click with bright dashboard lights is the starter. Rapid clicking with dimming lights is the battery or a corroded terminal. Starting fine and then dying while driving is the alternator. We test all three at the roadside before fitting anything, because replacing a healthy battery on a Jeep CJ with a failing alternator leaves you exactly where you started, two days later.
With a range ending in 1986, this is very likely a conventional car with no start-stop system, which means a good standard battery in the correct group size does the job. AGM would last longer but you would be paying for cycle life the car never uses.
Wrangler and Grand Cherokee cooling systems and their fan clutches are the heat items to watch here. For the battery specifically: park in shade where you can, drive far enough to actually recharge rather than only starting the car, and have it load-tested before summer rather than after. A battery that reads 12.4 volts at rest can still fail its load test, and the load test is the one that predicts the morning it does not start.
Same workshop, same technicians. Open a service for what it involves on your car.
Yes, at no charge, and it goes to a licensed recycler. Lead-acid batteries are not general waste and should never be left in a car park.
Two to three years in Dubai's climate. Anything past three summers should be load-tested rather than assumed good.
Call, or send your location on WhatsApp. We will tell you the price before we set off.
