Price History for BTI Battery Tech - BTI 4X20E50558-BTI 20V 135W AC ADAPTER 00HM686, 45N0364, 45N0486, 4X20Q85539, 5A11K67846, ADL135NLC2A, 00HM688, 45N0367 - Black

Analysis

BTI Battery Tech - BTI 4X20E50558-BTI 20V 135W AC ADAPTER 00HM686, 45N0364, 45N0486, 4X20Q85539, 5A11K67846, ADL135NLC2A, 00HM688, 45N0367 - Black price analysis

Price analysis for BTI Battery Tech - BTI 4X20E50558-BTI 20V 135W AC ADAPTER 00HM686, 45N0364, 45N0486, 4X20Q85539, 5A11K67846, ADL135NLC2A, 00HM688, 45N0367 - Black at Best Buy: Today's price is $78.07. That's 13% off the MSRP of $90.12. Current price is 2% above the 90-day average of $76.61 (a $1.46 above the running mean).

• The current price of $78.07 is 13% (or $12.05) below the MSRP of $90.12.
• Current price is 2% above the 90-day average of $76.61 (a $1.46 above the running mean).
• The lowest recorded price on PriceWatchPro was $73.47 on April 16, 2026. That's $4.60 below today's price.
• The highest recorded price on PriceWatchPro was $90.12 on December 21, 2025. Today's price is $12.05 below that peak.
• 30-day trend: trending up 3.9% from $75.15 to $78.07.
• Across 7 tracked price changes, the listing has dropped 2 times with an average drop of $8.33.
• PriceWatchPro has been tracking this listing since December 21, 2025 (308 days of price history).