This ultra-compact lithium battery capacity indicator module provides an instant, visual breakdown of your battery pack’s remaining power level [Image Context]. Featuring an onboard tactile “TEST” button and a clear 5-stage LED bar graph display, it eliminates continuous power drain by lighting up only when pressed [Image Context]. The unit comes pre-wired with color-coded red and black positive/negative pigtails for straightforward parallel integration onto battery terminals [Image Context]. Encased in a low-profile, surface-mountable black bezel panel, this universal gauge is perfect for monitoring DIY power banks, LiPo packs, RC vehicles, and portable solar energy storage banks.