Orion BMS Comparison

Below is comparison of the Orion BMS with the Elithion Lithiumate BMS family.

Digital, sophisticated
Distributed (minimal wiring)
Connections to 100 cells	101 wires 4 thermistors	4 small cables
User can configure number of cells
Max number of cells	180	256
Helpful LEDs		12
Strings in parallel		16
Over-voltage / under-voltage / temperature / current protection
Sampling rate	30 ms	10ms~2.5 s
Current sensors	1	2
Integral temperature sensors
Isolation detection
Max balancing current	0.1 A	3 A
Thermal management
State Of Charge / State Of Health / cell resistance reporting
Data logging
Graphics User Interface
Dash-mount display
CAN bus
USB port
RS232 port
Power inputs	1	2 DC 1 AC
Contactors control input
Contactor precharge output
Warning and fault outputs
Charge Current Limit / Discharge Current Limit outputs
Throttle reduce output / Valet mode
Ammeter output
Voltmeter output
SOC meter output
OBD II support
Built in charger CAN compatibility		4 brands 11 models
Built in motor controller CAN compatibility		3 brands 4 models
Field configurable
Self service software upgrades
In the field	since 2011	since 2008
MSRP, 108 cells	$ 1310	$ 1196

Functions listed assume all options offered in product family.

Prices assume minimum options offered in product family.

Based on information retrieved on 2/24/12 from the Orion BMS website.

The Orion BMS is designed and manufactured by Ewert Energy Systems, Inc which is a research & development company focusing on developing solutions for plug-in hybrid and electric vehicles.

Ewert Energy Systems is based in Carol Stream, IL, and, besides the Orion BMS, is the maker of fine products such as the CANdapter and the Prius Contactor module.

Please visit the Ewert Energy Systems website, or the Orion BMS website, for more information on the Ewert Energy Systems' Orion Battey Management System.

Orion BMS, and CANdapter are a trademark of Ewert Energy Systems. Elithion Inc is not in any way related to Ewert Energy Systems, the Orion BMS or the CANdapter.