Dell Vostro A840 Setup and Quick Reference Guide - Page 29
Battery, Vostro A840, Technology Guide - battery not charging
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Specifications Battery (continued) Voltage Charge time (approximate): Operating time Life span (approximate) Temperature range: Operating Storage Coin-cell battery Vostro A840 11.1 VDC (6-cell) 14.8 VDC (4-cell) 4 hours (when computer is off) Battery operating time varies depending on operating conditions and can be significantly reduced under certain power-intensive conditions. See Dell Technology Guide for more information. 300 charge/discharge cycles 0° to 35°C (32° to 95°F) -40° to 65°C (-40° to 149°F) CR-2032 Vostro A860 11.1 VDC (6-cell) 14.8 VDC (4-cell) 4 hours (when computer is off) Battery operating time varies depending on operating conditions and can be significantly reduced under certain power-intensive conditions. See Dell Technology Guide for more information. 300 charge/discharge cycles 0° to 35°C (32° to 95°F) -40° to 65°C (-40° to 149°F) CR-2032 29
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