not to scale.
Name.
Height × Width × Length.
(square section type)
34.9 mm × 15.9 mm
(round types)
Contacts: Raised areas either end for Positive and Negative.
Carbon Zinc
88 mAh.
This battery is a stack of 10 × LR54 with a metal "pip" contact plate at each end and a casing to hold it all together.
This battery is listed in the AVO Model 8 manual as one of the 15V battery options, the other being the B121, which has a higher capacity.
Equivalents:
10F15, 10LR54, 202, 220, 222, 23-509, 504, 74, 960-0355, A220, B154, BA332/U, BLR154, Burgess Y10, Burgess Servel Y10, DH554, ER-504, Eveready 504, GP220, GP 220A, KA74, M504, MN154, TR149, V74PX, W10, W10E,
| Image not to scale. | Common Name. | Dimensions. Height × Width × Length. | Chemical Composition. | Nominal Voltage. |
|---|---|---|---|---|
|
| 504. | 34.9 mm × 15.9 mm × 15.1 mm (square section type) 34.9 mm × 15.9 mm Contacts: Raised areas either end for Positive and Negative. | Alkaline, Carbon Zinc | 15 volts. 88 mAh. |
This battery is easily constructed from a stack of 10 LR54 button cells held with heat-shrink tubing or some electricians tape wrapped around them.
NB: The addition of a "pip" on each end or "easing" the contacts in the equipment may be required for an excellent fit.
The Silver Oxide (SR54) cells will give a longer working time than the Alkaline cells but Alkaline cells will be suitable for use in low current or light use applications.