Important Notice
From 2007 to 2021, ZEVA produced a range of custom electronic devices for electric vehicles. In July 2021 the decision was made to wind down the business, and as of October 2021 no new orders are being taken.
As a parting gift to the EV community, the designs of all products have been released "open source", which means you can download everything needed to reproduce each device, both pre-prepared production files and code/schematic/PCB files in case you wish to modify them. All files are provided freely to use for any purpose including resale, but use is entirely at your own risk and without any support or warranty. Look for the design files link on each product page.
This website will remain available indefinitely for product information, manuals, FAQ and design files.
Electric Vehicle Management System V3
| | Multifunctional, integrated control system for your electric vehicle or off-grid battery. |
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| | View information from the EVMS3, BMS12 modules, ZEVA motor controllers, TC Chargers or BMS16 over CAN bus |
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| | Measure and report battery current to the EVMS3 and Monitor over CAN bus |
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| | Measure and report shunt current to the EVMS3 and Monitor over CAN bus |
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| | Automotive grade, CAN bus-enabled battery management and balancing for up to 12 cells per module. |
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| | Automotive grade, CAN bus-enabled battery management and balancing for up to 24 cells per module. |
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| | For charging your EV from J1772 charging stations (Type 1 and Type 2) |
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| | 100Kohm NTC thermistor for use with our BMS12, BMS16 and EVMS3 devices |
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More Battery Management |
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Motor Controllers |
| | Simple, reliable turn-key BMS for 12-44V lithium battery packs. |
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| | Simple, reliable turn-key BMS for 24-48V lithium battery packs. |
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| | 150V 1000A motor controller for Series DC and PM DC motors. For larger EVs, higher performance and direct drive vehicles. |
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| | 150V 600A motor controller for Series DC and PM DC motors. For EVs up to approx 1000kg. |
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Other Products and Accessories
| | Protect your 12V aux battery from over-discharge damage with this simple, inexpensive device. |
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| | Soft start your motor controller to avoid component damage from inrush current spikes. |
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| | View battery SoC on your fuel gauge, plus instantaneous current on your tachometer. |
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| | Monitor and protect up to 8 lithium cells per board. |
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Electric Vehicle Management System V2
Version 2 products are now discontinued but can be built-to-order by request as replacements or additions to legacy systems. Please contact us to discuss. For all new installations, the EVMS3 is recommended as it has many improvements and more up-to-date support. Links provided below for further information and user manuals.
| EVMS Core
The multifunctional, integrated core of our Electric Vehicle Management System V2. |
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| EVMS Lite V2
A simplified, economical version of our Electric Vehicle Management System |
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| EVMS Monitor V2
View information from an EVMS, BMS modules and ZEVA motor controller over CAN bus |
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Quote of the Day
"Never doubt that the work of a small group of thoughtful, committed
citizens can change the world. Indeed, it's the only thing that ever
has!" - Margaret Mead
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