Davis Kuma the new electronic engineer on the project has recommended a Chinese Battery Management system: 16S High Current 200A 48V Li-ion Battery PCB PCM with Balance. Details below:

Features:
With balance, Same port for charge and discharge, Waterproof

Main functions:
– Over charge protection
– Over discharge protection
– Short Circuit protection
– Over current protection

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Specifications:

14S / 52V	Detail	Spec
Discharge	Maximal Continuous Discharging Current	80A	100A	200A
Peak Discharging Current	200A	200A	400A
Over Current Protection Current	200A	200A	400A
Charge	Charging Voltage	58.8V
Charging Current	80A	100A	200A
Over charge protection	Over Charge Detection Voltage	4.25±0.025V
Over Charge Detection Delay Time	1.0S
Over Charger Release Voltage	4.19±0.05V
Cell balancing	Cell balancing Detection Voltage	4.18V
Cell balancing Release Voltage	4.18V
Cell balancing Current	35±5mA
Over discharge protection	Over Discharge Detection Voltage	2.8±0.05V
Over Discharge Detection Delay Time	1.0S
Over Discharger Release Voltage	3.0±0.05V
Over current protection	Over Current Detection Voltage	150mV
Over Current Detection Delay Time	9MS
Over Current Protection Condition	Disconnect the load
Short Protection	Detection Condition	Exterior Short Circuit
Detection Delay Time	250uS
Release Condition	Disconnect the load
Temperature Protection	65℃ or 75℃
Internal Resistance	MOSPET	≤10mΩ
Size	200A (180*66*27.5mm)

1. Overview: 16s 200A bms is used for 16 series 52V battery pack. We can design it for various lithium batteries like LiFepo4, LiMn2O4, and Li-polymer etc. The main functions are: over charge protection, over discharge protection, over current protection, short-circuit protection, temperature protection etc. According to the customer request we can develop PCM in different sizes and structures. BMS manufactured by high quality Mos and IC imported . Keep your battery long cycle service life time.

2. Advantage: Use top quality (A-level) protective integrated circuit IC, from the solution of Japan. Strong load ability, constant discharge current 25/35A/45A/60A, use high voltage resistance, low inner resistance power Mosfet. The heat sink will greatly help cooling. IC itself has power balancing function. The circuit is simple and reliable. Typical voltage detection for each cell so each battery will be prevented over charged or over discharged. Over current and short circuit protection function is very reliable. Long-time short circuit of the load won’t affect the PCB and the battery. Temperature protection during charging and discharging. Extreme low power consumption. The consumption of the whole device is less than 50uA. PCB use high anti-corrosion, high water resistance, high impedance ESD conformal Coating