not to scale.
Name.
Height × Width × Depth.
including projections
Contacts:
Recessed pads, connecting with pins on equipment.
Battery can only be fitted one way.
Or whatever you put in the holder.
BP-257 is a battery holder that takes 2 × AA batteries and has a voltage step up converter built in. NOTE:TX Power of the radio is reduced using the BP-257. There are some "AA" sized Li-ion batteries available that, at 3.7 volts each, supposedly give full output when fitted in the BP-257, though you need a special charger for these batteries. I have not tried this, it was reported on Mods.dk about the BP-216, which is similar tho the BP-257.
Equivalents:
BP256, BP-256Li, BP257,
| Image not to scale. | Common Name. | Dimensions. Height × Width × Depth. | Chemical Composition. | Nominal Voltage. |
|---|---|---|---|---|
|
| BP-256. | 49.5 mm × 58.8 mm × 21.3 mm including projections Contacts: Battery can only be fitted one way. | Li-ion, Or whatever you put in the holder. | 7.4 volts. |