※ CR316 batteries produced by Dlyfull can theoretically be used for over 40 hours per battery. The power consumption varies depending on the light or float, but you can expect to use one battery for about 20 hours. Also, as a tip for longer use, if you are using the battery continuously for a long time and the brightness starts to dim, remove the battery and replace it with another one. Then, let the removed battery rest for a certain period of time to fully recover before using it again. By repeating this process, you can significantly reduce battery costs. ※ Product Description - Model Number: CR316 "CR": Model Number "3": Battery diameter "16": Battery length - Quantity: 5 batteries x 2 - Voltage: 3V - Capacity: 9mAh - Weight: 0.25g - Production Date: October 2025 - Condition: New, unused If the diameter is the same and the length is not an issue (too long and it won't close/too short and it can't be removed), there is compatibility between products! ※ In China, Dlyfull (丹尼富) is a fishing battery manufacturer with the best overall evaluation compared to other manufacturers! The product performance (such as output stability) is also good, and the price is low! Rod tip lights/electric floats basically use 5 types of lithium batteries: CR435/CR425/CR322/CR316/CR311. Among them, CR425 and CR316 are often used. ※ About Compatibility ・CR435 → BR435 compatible ・CR425 → BR425 compatible ・CR311 → BR311 compatible ・CR316 → BR316 compatible ・CR322 → BR322 compatible 【Other】 CR311 battery capacity: 5mAh/battery CR322 battery capacity: 13mAh/battery