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What is the weight of a car battery?

2 Answers

GemmaAnn

09/08/25 4:38am

Currently, there are generally two types of car batteries: nickel-cadmium batteries and lead-acid batteries. Their weights are similar, with nickel-cadmium batteries being slightly lighter. Currently, electric vehicle batteries follow a unified standard. The reference weights are as follows: 6-DZM-10AH is approximately 4.15 kg; 6-DZM-12AH is about 4.3 kg; 6-DZM-14AH is around 4.5 kg; 6-DZM-17AH is roughly 6.5 kg; and 6-DZM-20AH is about 7.2 kg. Introduction to car batteries: A car battery, also known as a storage battery, works by converting chemical energy into electrical energy. Typically, the term 'car battery' refers to a lead-acid battery, which mainly uses lead and its oxides as electrodes and sulfuric acid solution as the electrolyte. Methods for maintaining a car battery: Avoid storing the battery in a discharged state; conduct regular inspections; prevent high-current discharge; manage charging time properly; and protect the battery from high temperatures and direct sunlight.

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OKevin

09/20/25 3:21am

I've seen quite a few car batteries, and they usually weigh between 20 to 30 kilograms, depending on the battery type and capacity. For example, a standard lead-acid battery for a family car is about 25 kilograms, equivalent to carrying a bag of rice; larger batteries for trucks or SUVs can exceed 30 kilograms, making them quite a hassle to move. Why so heavy? Because the lead plates and electrolyte inside make up the bulk of the weight. I recommend checking the manual or label before replacement to ensure the size matches, avoiding buying the wrong one. If the weight is too much, don’t attempt it yourself—get professional help to prevent back injury. Lithium-ion batteries are lighter but more expensive, suitable for those prioritizing portability.

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