This article juxtaposes the lug connector with pluggable battery pole connector. As we shall see, though lug connector is priced lower than the pluggable battery pole connector, the latter connector trumps in many aspects, some of which are quite crucial in function and may shape the product lifespan. Divided into two main parts, the juxtaposition of the two devices sheds light on product structure, component material and respective working standard. Just by taking a glimpse of their silhouettes, we can find the more modest-looking lug connector leaves nuts and copper plates exposed on both ends. And they require manual screwing when connecting to the BESS and outer electricity-consuming devices, while the silver-plated pluggable connector nearly covers itself with only BESS connecting part exposed on one end and it doesn’t require manual screwing entirely. Actually, an entire pluggable battery pole connector is composed of two blocks and the orange-hued blocks have different interfaces with the black blocks. So it leaves no room for cross-mating. Besides the color, there is positive locking mechanism design on the pluggable connector preventing accidental disconnections. And still concerning its joint part, the mated connector system can be rotated 360°to simplify installation. One less observable fact about it is that with the housings, the pluggable battery pole connectors won’t be affected by dust, low-pressure water jets, condensation or water spray. But lug connectors are vulnerable to these potential hazards. Pertaining to the working standard, pluggable battery pole connector meets a wider range of working temperature. So it has wider environment application than lug connector. Another applauded side about the pluggable connector is its IEC rated identification for 120A and 1500V under DC. The comparisons between these two connectors are summarized as below: