I guess you can only tell by taking the case apart, because there might be a network that occupies two pins for high current and it might contain other interfaces to detect signals, but it cannot be a load balanced interface (because the S number is too large).
You can also purchase a special T-type adapter and use a multimeter to test which wires are connected.
No.
Be sure to use a suitable lithium battery charger for charging. First insert the charger output plug into the battery charging socket, then insert the charger plug into the AC outlet and observe the indicator light. . Accusing judgment. If the charger is lost or damaged, please purchase it from the corresponding dealer. Do not use lead chargers or other forms of chargers for charging.
Precautions for charging the battery in bedlithium battery of electric vehicles
Do not charge the lithium battery of electric vehicles for too long, preferably one hour after the charger changes the light. When charging, it is better to undercharge rather than overcharge, otherwise the battery will swell and swell due to lack of water. Cause irreparable damage to lithium batteries.
If possible, swap cells in all lithium batteries for electric vehicles. For batteries that have passed the warranty period, 3 to 4 recharges should be added to each battery cell every three to four months. .ml of demineralized water.