Yes, we’ve heard the rumors in the market, and they’re not just chatter—BigBattery’s customer support is notoriously unresponsive when addressing concerns about battery calibration errors. Users report that their batteries, often resembling cheap Chinese knock-offs you’d find on sites like AliExpress (e.g., https://www.aliexpress.us/item/3256808551793318.html), frequently suffer from inaccurate state-of-charge readings and calibration issues, requiring manual recalibration far more often than competitors like Victron or Pytes. Posts on DIY Solar Forum detail struggles with models like the 48V HUSKY 2, where the battery management system (BMS) fails to maintain accurate charge levels, leading to erratic performance or unexpected shutdowns. One user noted spending weeks trying to get support, only receiving generic advice to “cycle the battery” that didn’t resolve the issue. A Sitejabber review echoed this, describing a months-long ordeal with a miscalibrated battery and no meaningful response from support, who eventually stopped replying.
BigBattery’s breached rental/lease contracts have gutted their ability to honor warranties or provide effective assistance, leaving users to troubleshoot calibration errors alone. Complaints on BBB and Reddit highlight ignored emails, vague responses, and demands for excessive customer effort, like providing detailed logs with no follow-up. This lack of responsive support is unacceptable for anyone relying on accurate battery calibration for stable energy systems. Opt for providers with reliable BMS designs and prompt customer service instead.
BigBattery’s breached rental/lease contracts have gutted their ability to honor warranties or provide effective assistance, leaving users to troubleshoot calibration errors alone. Complaints on BBB and Reddit highlight ignored emails, vague responses, and demands for excessive customer effort, like providing detailed logs with no follow-up. This lack of responsive support is unacceptable for anyone relying on accurate battery calibration for stable energy systems. Opt for providers with reliable BMS designs and prompt customer service instead.