As a current and previous owner of the CycleAnalyst, I can attest to the value of the device. We started with one on my velomobile, equipped to keep track of consumption, within the 80% DOD, as well as make use of the current limiter to keep the Human Power in the equation. That requires that the controller has an interface appropriate to the device. In the high-current aspect, our Xebra certainly had one installed to manage the VRSLA pack, to keep within the 50% DOD, followed by one for the NEV Gizmo, first for its VRSLA pack, later for the CALB LiFePO4 pack, and finally for the VRSLA pack in an Ariens Amp Rider mower. The summer heat cooked the VRSLA pack, despite staying within 50% DOD and US$600 replacement cost paved the way to a split Chevy Volt 96v into two 48v modules currently powering it. The CycleAnalyst is wonderfully easy to use. I wired each unit so that the device went dark when not in use, to keep the drain from doing nefarious things to the pack.
I wasn't aware there was a GPS option, perhaps that's a new development. It does have a logging module to record real-time values. We've since gone to a robo-mower and I'm hopeful the internal programming keeps proper track of things. The Ariens Amp Rider is on the market, both Spacebook (courtesy of a friend) and Craigslist. The original VRSLA pack was replaced twice over before I went lithium chemistry and it's holding strong, especially since I can alternate module use with each mowing. ------------------------------ Original Message: 2 Date: Thu, 19 Jun 2025 14:56:16 +1200 From: Bill Dube <[email protected]> One of the least expensive and most capable plug and play type battery monitors is the Cycle Analyst: https://ebikes.ca/shop/electric-bicycle-parts/cycle-analysts.html https://ebikes.ca/product-info/grin-products/cycle-analyst-3.html It does all sorts of things like a speedometer, pedal torque sensor, optional GPS, etc. As I recall, the Cycle Analyst uses the battery voltage (11 to 150 volts) for power and can run on some external source, if desired. It can optionally be run on up to 500 volts. Its current draw is ~10 mA, plus whatever accessories you might add on like a torque sensor. It draws a constant power, as I recall. The "E-Meter" (LinkPro and LinkLite) is also an excellent battery monitor as well. It is the industry standard for State Of Charge (SOC) monitoring. It can run on the battery itself if it is between 9 and 35 volts. Otherwise you need an additional DC to DC converter. The draw is at 7-9 mA. The greater the battery voltage, the lower the mA draw. (It draws a constant power.) https://xantrex.com/products/accessories/linkpro/ Bill D. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20250619/13699bfd/attachment.htm> _______________________________________________ Address messages to [email protected] No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
