Indonesian coconut shell charcoal briquettes are one of the most popular briquettes in the international market. This opens up opportunities for researchers to conduct research to produce better briquette quality. Research on the effect of water addition on the characteristics of briquettes using a screw-type extruder machine is still rarely done. Therefore, research on the effect of water addition on the characteristics of coconut shell charcoal briquettes with variations in the addition of water as much as 20%, 25%, and 30% were carried out. The purpose of this research is to determine the value of ash content, moisture content, fly substance content, bound carbon, calorific value, density, compressive strength, brittleness, and combustion duration in each specimen. The results of the test will then be compared with the characteristics of commercial briquettes on the market and standardized with the standard parameters of several countries. In this study, there are 3 briquette specimens and 1 commercial briquette divided by the code of each specimen is br_1 for briquettes with 20% water addition, br_2 25%, br_3 30% and br_4 is a commercial briquette used for comparison. The results showed the effect of water addition on the characteristics of coconut shell charcoal briquettes. The best characteristics were obtained by specimens with the code br_2 which was able to produce the best mechanical properties by obtaining compressive strength test results of 70.78 kg/cm2 as well as size stability and fragility values of 95.56% and 4.44% respectively. The test results in this study were also able to fulfill several standard parameters that exist in several countries such as Indonesia, Japan, and the UK.