Busch & Muller Cache Battery for E-Werk

£74.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Please note : The Ewerk (even with Cache Battery) does not support Apple I devices with Software freeze 4.3.3 older versions are fine

The E-Werk makes hub dynamo energy universally useable and supplies mobile devices with power in variable voltage and current. With the cache battery, the bike-mobile power supply unit is even more universal and an even smoother operation is made possible. For some few devices cannot be powered or charged when the voltage they are fed with fluctuates or is interrupted. When one cycles slowly, the energy created by the hub dynamo and transformed by the E-Werk first drops and reaches zero when the bike stands still. Some devices react a bit touchily to these fluctuations and switch off. Other devices have to be manually switched back to powering by the E-Werk after stops.

The cache battery is the one-size-fits-all solution in both cases: Connected between the E-Werk and the mobile device, it can at the same time be charged and give off 5V (the standard value for USB connections) without fluctuating.

The battery comes in a nylon bag that can be fixed on bicycle frames of all diameters using an adhesive cloth tape.

- Input: 5.6V DC (e.g. from E-Werk)
- Output: 5V DC
- Capacity: Approx. 1400 mAh
- Charge Indication LED
- Dimensions with nylon bag: Approx. 80 x 40 x 40 mm
- Weight: Approx. 180g
- Circular Plug 3.5 x 1.35 mm (can be fixed splash and rainwater proof with the connectors of the E-Werk)
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Questions & Answers (1)
Part # B&M461A44731 Cache battery cable (mains)
23 Jun 2022
SJS used to offer a cable with which, with the addition of an early Ixon Speed IQ charger (447/3) enabled owner to charge the cache battery from a mains (house) electrical supply.
Is it possible you might have one of these cables (Part # B&M461A44731)
hidden away somewhere or have access to one? Alternative?
Sadly this product is no longer available, and we don't know of an alternative to suit.

JK 23.06.22