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Bentley B-15 Battery Charger
The Bentley B-15, which is referred to in the instructions as the "world's largest battery charger", is capable of charging up to fifteen batteries at the same time. It was made in two different versions (one is white with a clear cover, another tan with an amber cover - this version is more common). It can charge a great variety of Nickel Cadmium (Ni-Cd) rechargeables, including AA, AAA, C, D, 9V, 6V, coin-style, and other types of batteries. It has an indicator light next to each battery to show that it is being charged, and can charge as few as one at a time (many chargers require at least two batteries to be charged at the same time, sometimes in increments of two).It is powered by a built-in AC power cord, so it doesn't need a separate supply/adapter. According to the instructions, the charging time for different types of batteries ranges from one to thirty hours, while most types of batteries charge in less than twelve hours. For example, an "AAA" battery only takes 1-2 hours, an "AA" only takes 2-4 hours, but a larger "D" takes 16-24 hours. An order form (from the 1980s) for Bentley products had a price of $20 for this unit, and also listed a $7.50 battery tester. |