Home / Systems / Compatibility
Bosch Standard Charger 4A (smart system) (4 A, BES3, round plug): output and fit
What the Bosch Standard Charger 4A (smart system) outputs, the port it uses, and the batteries it charges.
Power panel
Voltage
36 V
Connector
Bosch smart-system round charge port
Charger data
| Charge current | 4 A |
|---|---|
| Connector | Bosch smart-system round charge port |
| Output | 36 V nominal pack |
| Systems it charges | Bosch Smart System (BES3) |
| Fits | Bosch smart system (BES3) PowerTube 250/500/540/600/625/750/800, PowerPack 400/500/545/725/800, CompactTube 400 and PowerMore 250 |
Fits: Bosch smart system (BES3) PowerTube 250/500/540/600/625/750/800, PowerPack 400/500/545/725/800, CompactTube 400 and PowerMore 250.
The Bosch smart-system 4 A charger fills a PowerTube 750 in about six hours and a 500 in about 4.5 hours. It uses the round smart-system plug and will not correctly serve a BES2 oval-port bike.
Systems and connector
Bosch Smart System (BES3)BES3, model year 2022 onBosch smart-system round charge portBES3 round plugCharger for a Bosch Smart System (BES3) bikeresolution
Sources: Clever Cycles, Bosch Standard Charger 4A Smart System ยท Bosch eBike Systems, Charger