Frequently Asked Questions (FAQs)

Are ION Energy’s battery management systems (BMS) compatible with battery packs of all lithium-ion chemistries?

Our battery management systems can be configured to support all leading chemistries of lithium-ion batteries in various form factors (prism, cylindrical, etc.) Currently, the BMS is compatible with the following battery chemistries:


1. Lithium Cobalt Oxide(LiCoO2) — LCO
2. Lithium Manganese Oxide (LiMn2O4) — LMO
3. Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2) — NMC
4. Lithium Iron Phosphate(LiFePO4) — LFP
5. Lithium Nickel Cobalt Aluminum Oxide (LiNiCoAlO2) — NCA
6. Lithium Titanate (Li2TiO3) — LTO


Our BMS is not compatible with lead-acid or Ni-MH battery packs.

What battery voltage range is ION’s BMS compatible with?

Our battery management platform can manage battery packs of all ranges from low voltage to high voltage applications. We have three variants of our smart battery management system:

FS-CT (Compact): Designed for low voltage battery systems from 7.5V to 42V.
FS-LT (Light): Designed for battery systems from 12V to 100V
FS-XT (Extended): Designed for high voltage battery systems from 13V to 900V.

You can find more information about our systems here.

What are the minimum and maximum number of cells ION’s BMS can be connected to?

The FS-CT can manage from 6 to 100 cells in series while the FS-LT can manage from 6 to 25 cells in series. The FS-XT has a distributed battery management system consisting of a Master Unit (System Management Unit or SMU) which can be connected to up to 40 Slave Units (Battery Monitoring Unit or BMU). Each Slave Unit can monitor from 6 to 18 cells in series.

Does ION’s BMS support CAN Protocol?

All of our battery management systems are built with CAN Bus 2.0 A&B interface for charger control and system interfacing. The BMS supports all baud rates ranging from 125 kbps to 1 Mbps. Both standard and extended CAN IDs are supported by the BMS.

Our CAN View desktop software suite allows two-way communication with the battery management systems for system configuration, real-time data visualization, authentication and data transfer to our battery intelligence platform, Edison Analytics.

Does ION’s BMS log any data?

Yes, all our Battery Management Systems are equipped with on-board memory storage to log every data point of the battery pack collected by the BMS, up to 20 years of historical battery data. Normally this would lead to an enormous amount of data, but we’ve developed compression algorithms tailored for battery data acquisition.

The BMS records all physical parameters, events, errors relating to the performance of the battery pack. Our cloud-connected battery intelligence platform, Edison Analytics, allows engineers to access this data and gain insights into the life and performance of the battery.

Can you configure the threshold parameters of ION’s BMS?

Yes, Edison Analytics allows users to configure the BMS to match their application’s requirements with the battery’s capabilities. Users can customize over 190 parameters relating to power distribution, ignition controls, balancing, charger control and much more.

What kind of cell balancing is supported by ION’s BMS?

ION’s BMS supports passive cell balancing to ensure uniformity in the State of Charge (SOC) and voltages of the individual cells, thus maximizing the capacity of the battery pack and improving its battery life. Balancing the current range varies across the variants of our Battery Management Systems.

Battery Management System

Balancing Current Per Cell
FS-CT150mA @ 4.2 V
FS-LT150mA @ 4.2 V
FS-XT420mA @ 4.2 V
What type of current sensors are supported by ION’s BMS?

ION’s BMS is readily compatible with open-loop Hall effect current sensors that have a voltage based output ranging from 0-5V.

How does the BMS manage the flow of current in and out of the battery?

The BMS manages the flow of current through the Power Distribution Unit (PDU). Our BMS supports both solid-state and electromechanical based PDUs. We have our own range of solid-state-relay (SSR) based PDU called the FSB-B that integrates with our BMS. The FSB-B features onboard MOSFETs, current sensor, temperature sensor and short circuit detection circuitry. It can support currents up to 100A.

At higher currents, our BMS can interface with any electromechanical based switches through an interface board called the FSB-PR-I. The FSB-PR-I controls the external contactors based on the commands of the BMS and reports the raw current values back to the BMS

Which Chargers are compatible with ION’s BMS?

Our BMS supports all Non-CAN based CC/CV chargers. The BMS is readily compatible with the following CAN-based smart chargers:


1.  Zivan
2.  TC Charger
3.  Bassi Charger
4.  Dilong Charger


If your desired charger is not mentioned in the above list, IONs firmware can also be customized to be compatible with any other CAN-based chargers.

I want to connect multiple batteries in parallel. Does ION's BMS provide for that?

Yes, we’ve specially designed and built paralleling algorithms to enable our BMS to support
not just 2, 3 or 4 batteries but a total of 18 batteries connected in parallel!


Paralleling just 2 batteries together is a challenge for the BMS! This is because when two batteries of significantly different voltages are connected in parallel, a large amount of circulating current will flow between them in accordance with the difference in their voltages. This circulating current can damage the battery packs. Hence the BMS needs to ensure that batteries are allowed to be connected in parallel only when their voltages are similar.

Can you give us more information about the certifications that your BMS has?

Jointly with our client, we have successfully tested and validated our BMS hardware for IEC 61 000 (EMI / EMC) & IEC 61439-1:2011.

Further, we have gathered the know-how and expertise to help our partners certify their battery packs integrated with our BMS. We’ve helped our partners achieve the following battery level certifications:

1.  IEC 62133
2.  Basic UN38.3
3.  ARAI AIS 048 for Indian Automotive Industry

Does ION Energy manufacture lithium-ion batteries?

No, we do not manufacture or sell lithium-ion batteries. We are a battery management and intelligence platform. Our smart battery management systems and battery analytics software help improve the life and performance of lithium-ion batteries. We do not manufacture or sell lithium-ion batteries.

However, leveraging our experience of working on cutting edge automotive and stationary storage projects, we help companies design and engineer battery packs as per their specifications. For more information, please contact us or write to us at

Does ION Energy provide a warranty on its BMS?

All our battery management systems come with a warranty for a period of one (1) year from the date of shipment of the products. The foregoing warranty does not apply to any products which have been subject to misuse, neglect, accident or modification or which have been soldered or altered such that they are not capable of being tested under normal test conditions or to use of the products in conditions, environments or modes other than those described in our published specifications or datasheets.

Still have a question? Contact us and someone from our technical support team will get in touch with you shortly!