DescriptionIf you are looking for a professional battery checker, then your research is over here. That's because our product can meet your need. Adopted of premium material, practical and durable for long time use, not easy to get deformed and bring you much convenience.Features-Color:Black -Material:ABS, electronic components -Size:9.00X5.80X2.10cm/3.54X2.28X0.83in - This battery tester is a detection instrument that can detect the battery status, and the detection battery type includes most rechargeable batteries. - The supported battery types are Li-Ion, Li-Po and Li-Fe. - Can support 2S-8S lithium battery type (Li-Po, Li-Ion, Li-Fe) without additional power supply. - Can support 4S-8S nickel battery type (NiMH) without additional power supply. - If you need to test nickel batteries smaller than 4S, you need to connect 2-8S lithium batteries to the Lithium port to provide working power.