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| An early Philadelphia Battery, probably from the 1910-1918 period. |
Philco's 1923 lineup of radio batteries and accessories. Clockwise from top: Type RARX 6-volt battery, Type UD44 4-volt battery, two-unit "B" battery containing two Type 224 batteries, Type RAR 6-volt battery. In center: A Philco Trickle Charger. |
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| Philco battery charger. Smaller version of that shown above. |
Philco battery tester with original container. |
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| A Philco 2 volt storage battery for radio applications, along with its shipping crate. |
Rechargeable "B" radio battery with wooden container. |
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| A 6 volt storage battery for radio use. |
