“Purchased to charge my 100ah LiFePO4 battery but it really doesnt have a proper LiFePO4 charge profile. LiFePO4 cells should be charged purely bulk at a fixed Voltahe and fixed current to 3.65V per cell or 14.6V for a nominal 12.8V battery and then disconnect. This charger in Li setting, only charges to 14.4 and exactly the same as a Lead Acid battery, ie, bulk, then a reduced current absorbtion then a lower voltage float.
Conclusion, willst it will charge your LiFePO4 batteries, its just a standard lead acid charger with a display that says Li, but it really isn't a proper LiFePO4 charger.
Do better Kickass, don't believe the bullsh!t the Chinese manufacturers tell you. Get prototypes tested by folks who specialise in Lithium.”
Hi Cliff, Thank you for taking the time to share your thoughts. I’m really sorry to hear the charger hasn’t met your expectations - we genuinely appreciate your detailed feedback.
I just wanted to clarify a few technical points that might help. The lithium charge algorithm used in our Flexicharge 32A Smart Charger was custom-designed by our engineering team, specifically for use with our KickAss LiFePO4 batteries and their internal BMS. Our Li setting uses a proper CC-CV (Constant Current – Constant Voltage) profile - it charges at max current until the battery reaches 14.5V, then holds that voltage while current tapers off until the battery is full.
While it may appear similar to traditional lead-acid charging at a glance, our Li profile does not include a float stage, which is key for LiFePO4 chemistry. This setup has been extensively tested to ensure it’s safe and effective for our battery range.
If you’d like to chat further with one of our tech specialists, please don’t hesitate to reach out to us at support@kickassproducts.com.au.
