Grin TechnologiesCycle Satiator - Programmable Electric Bike Battery Charger - 24,36,48,52 V

This may be the best multi-chemistry charger for 12-48v battery packs up to a kwh capacity or so! It is hard to find a programmable charger under $500 that will charge the wide variety of chemistries, voltages up to nominal 52v, and up to 360W output. Grin Technologies even has a design to marry their hugely popular Cycle Analyst into a Semi Automated Battery Tester coupled with a basic Windows laptop or Tiny PC.This 48v version uses the same software and accessories as the other Satiator models, with a higher charge current, up to 8A, compared to 5A for the 72v Satiator.In addition, you would be hard pressed to find a more responsive company to the techie looking to really get the most out of your batteries whether they are for your drone, your electric bicycle, or some exotic electric vehicle. At least for batteries up to a kw-hour or so (48v at 20ah)Pros: + comes with many preset profiles for different battery chemistries sizes and voltages + many adapters are available for under $20 each, including one to a generic 15A PowerPole connector pair + excellent support from the info line at Grin Technologies, especially if you are more technically inclined + despite a tiny screen and small buttons, you can get an amazing amount of information on your charging cycle from the display! + PC interface allows setting custom profiles and managing 5 active profiles among a bakers dozen of other profiles in memory + the manual includes a great deal of supplemental information on how to setup the Satiator with different battery chemistries: Lithium, Lead Acid/Gel Cell, and NiMH/NiCd + we could not find ANY other supported 48v multi-chemistry, programmable chargers for less than $500! + a web simulator is maintained on the Grin Technologies web site where you can create custom battery profiles, then download them to the chargerCons: - one of the only downsides is that effective use of this charger requires actually reading the manual and spending time understanding the device! - the screen is tiny, the two control buttons small, still see above - the PC interface doesn't allow one to interface directly to capture stats after a battery testMy experiences with Grin Technologies have been exceptional, even as both of the Satiator's we acquired were from that Amazon competitor that rhymes with "D day".

Impressive programmability (voltage, amps, battery type), easy user interface and generous menu (with just two buttons to navigate!) It displays all related variables that are relevant for the user, including graphics, in its tiny display. It keeps a history of all the charging events for each of the charging methods, either factory pre-loaded or custom ones, producing totals and averages of the amount of charge delivered. It allows the user to optimize the charging either for speed of charge -up to 4 amps in my version- or to maximize battery life. I have used it for one week and I think this is the best charger for your e-bike and every other rechargeable within the voltage range of the Satiator. Of course, before you commit to start charging a battery, verify that the chosen charging method (battery type, voltage and amperage) is the correct one, as it does not remember which one it was used in the previous charging session. If the charging method required by the battery is not in the factory pre-loaded list, and the user does not feel confident about creating a profile or method for the battery, I suggest to consult the factory or somebody with the basic knowledge before proceeding. While it is not "rocket science", this is not a plug and play charger. Still, I recommend the charger for even the less technically oriented user.

Quality product. Versatile charging. It comes with some pre-configured charging profiles that make sense, and you can configure custom charging profiles for a non-standard battery. It is worthwhile to take the time to read the instructions and and experiment with the capabilities of this quality product.

I really wanted this charger. It's efficient so I can use the least amount of power to charge the most which is important when I'm out on the road.but this charger has been nothing but problems from the start. When I plugged it into the battery the display started flickering on and off on and off.When I had this problem I noticed Amazon did not have any more of these units available. I contacted Amazon for a return and in the meantime it started working after plugging it into a fully charged battery.So I wasn't going to return it now a few weeks later. I get power fault on the display. In reading this on the internet the company assembled these with bad capacitors. That will work for a few weeks and then quit. They're still or no replacements on Amazon and I'm going to have to return this item. Really did want one but it looks like I'm going to have to go with a different type of charger. At $300 Dollars plus they should have the kinks worked out of this thing. I think Amazon must have got a lot of these return and are not putting them back on their Marketplace. Too Bad

Once you get used to the somewhat odd (to me) button sequences to operate, this is a remarkable charger which can be custom tailored to a specific charge profile to increase lifetime cycle counts on lithium cells, as well as more conventional charging of other types of batteries....even lead-acid! I am even able to charge my RC 3S packs, all the way up to my Ebike battery packs. Outstanding!