Gel-filled BS SLA battery.

A gel/SLA battery contains battery acid bound in a silica gel.
This allows it to be operated in any position (flat or at an angle) and makes it 100% leak-proof. In addition, it is factory-filled and ready for immediate use right out of the box.

It also has a longer service life than a conventional battery.
Furthermore, the maximum discharge current is higher at low temperatures—a major advantage for year-round drivers.

NOTE: The following special provisions apply to the sale of starter batteries: Pursuant to Section 10 of the German Battery Act (BattG), the seller is obligated to collect a deposit of 7.50 euros, including sales tax, from end users if the end user does not return a used starter battery to the seller at the time of purchase of the new starter battery. Upon purchasing a starter battery, the customer receives a deposit receipt. When returning the old starter battery to a collection point established by the public waste management authority, the customer must have the disposal confirmed by means of a stamp and signature. The customer may then return this confirmation to the seller, along with their customer number, to receive a refund of the deposit. Alternatively, the customer may return their old starter battery directly to the seller, along with the deposit receipt, to receive a refund of the deposit. (Due to the Hazardous Materials Ordinance, shipping the old battery to the seller is not permitted.)

This is how we ensure, that reviews come from real consumers.
Maurizio S. 01/25/2026
Thomas B. 07/22/2025
OEM numbers (for comparison purposes only)
Scooter Center:
BS300915
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