1. System scalable, up to 450V; 2. Easy to install,debug and maintain; 3. Qualified BMS for EV/HEV

O'CELL can offer a scalable, modular approach, with configurations in excess of  450 volts and 1,000 Ah in custom solutions. The modules are packaged in standard lead acid BCI format sizes suited for a huge variety of applications.

Specification

No.	Item	Specification	Remark
1	Battery module	IFM18-700E1(19.2V70Ah)
2	Assemble method	22S1P
3	Nominal voltage	422.4V
4	Nominal capacity	70Ah
5	Whole Energy	29.6KWh
6	Voltage Range	330~481.8V	adjustable
7	Charge Current	≤35A
8	Discharge Current	≤100A
9	Peak Discharge Current	≤200A(10S)
10	Approx. Weight	<340Kg
11	Approx. Resistance	<480mΩ
12	Reference Dimension(L*W*H)	Depend on its configuration
13	Temperature Range	charge:0~50°C
		discharge:-10~55°C
14	Storage Temperature	-10~45°C
15	Over Voltage Warning	514.8V	adjustable
16	Over Voltage Alarm	528.0V	adjustable
17	Under Voltage Warning	369.6V	adjustable
18	Under Voltage Alarm	303.6V	adjustable
19	Over Temperature Warning	60°C	adjustable
20	Over Temperature Alarm	65°C	adjustable
21	Regeneration	Depend on motor controller

Note:

1. Each battery module has one slave BMS circuitry inside;

2. Master BMS circuitry(we named BMU) collect all information from each battery module through

RS485, then decide to cut-off the contactor or not;

3. We strongly recommend customer to use two contactors (one for charge and another for

discharge) at least  in the battery system.

BMS: 

O’CELL BMS consists of Master BMS Circuitry (we named “BMU”), Slave BMS Circuitry (we integrate it into our battery module) and contactor. 

Besides the basic functions such as over charge/ discharge, over current, short circuit, over

temperature and balancing, Our BMS owns the following features,

1. Master-Slave architecture makes the system flexible;

2. Two level warning makes maintenance easier;

3. CAN2.0 and industrial level electronic components make system reliable;

4. Contactor makes high rate charge & discharge feasible;

5. Periodic insulation measurement makes personnel safety possible;

6. Host can control the system easily;

Battery module:

1. Modular design makes the system installation, maintenance easier;

2. Battery modules can be connected in series or parallel to make the system more flexible;

3. IP56 dust and water proof design suit for severe circumstance;

4. Dual LED indicator makes the battery module status easy to know;

5. High accuracy SOC calculation

BMU Photo

Monitoring Software (Need USB-CAN Adapter)

384V110Ah LiFePO4 battery pack for gabage truck