Unlike NCM (Nickel-Cobalt-Manganese) batteries that prefer an 80% daily limit, BYD's owner manual explicitly recommends charging your LFP Blade Battery to 100% at least once a week.

The Engineering Reason:

• LFP cells have a very flat voltage curve (~3.25V to 3.33V) between 15% and 95% SOC, making coulomb-counting drift slightly over time.
• At 99%–100% SOC, LFP cell voltage rises sharply to 3.60V–3.65V, allowing the BMS to calibrate exact SOC and bleed-balance all cells to within 5–10 mV of each other!

@keith_macd_uk We had a licensed electrician install a 15A generator changeover inlet switch on our house switchboard—now we just plug one heavy-duty lead from the BYD V2L socket to the wall inlet to power our house circuits safely!