Shimano STEPS EC-E8004 vs Bosch Fast Charger 6A
Comparison 2026 — E-bike Chargers
VS
Our verdict
Based on our weighted scoring, the Shimano STEPS EC-E8004 edges out the Bosch Fast Charger 6A with an overall score of 86/100 against 86/100. It scores particularly well on charging speed (76/100) and compatibility (92/100), making it the better all-round pick in E-bike Chargers.
The Bosch Fast Charger 6A remains a sensible alternative if price is your main concern — it lands at €139.00 versus €79.00.
Charging speed winner
Bosch Fast Charger 6A
18% higher than its rival
Value winner
Shimano STEPS EC-E8004
8% better value for money
Specifications
| Specification | Shimano STEPS EC-E8004 | Bosch Fast Charger 6A |
|---|---|---|
| Price | €79.00+76% | €139.00 |
| Rating | ★4.5 (640) | ★4.6 (1,480) |
| Overall | 86/100 | 86/100 |
| Charging | ||
| Charging current | 4 A | 6 A+50% |
| Output voltage | 36 V | 36 V |
| Power | 144 W | 216 W+50% |
| Charge time 504 Wh (0-100%) | ± 5 uur | — |
| Weight | 650 g+62% | 1050 g |
| Charge time 500 Wh (0-100%) | — | ± 3 uur |
| Compatibility | ||
| Battery type | Shimano STEPS BT-E6000 / E8010 / E8014 / E8020 / E8035 / E8036 | Bosch PowerPack / PowerTube Classic+ |
| Motors | STEPS E6000 / E7000 / E8000 / EP8+198% | Active, Performance, Performance CX (2014-2021) |
| Connector | Shimano 4-pin rond / 4-pin round | — |
| Not compatible | Bosch / Brose / Bafang / Yamaha | — |
| Capacities | — | 400 / 500 / 625 Wh aanbevolen |
| Smart System | — | Nee / No |
Pros and cons
Shimano STEPS EC-E8004
Pros
- Genuine Shimano product with a 2-year manufacturer warranty
- Compact and silent — no audible fan during charging
- Compatible with virtually all Shimano STEPS E6000/E7000/E8000 batteries
- Charges a 504 Wh BT-E8035 pack to full in about 5 hours
Cons
- Shimano does not offer a 6A fast-charge variant
- Works exclusively with Shimano STEPS batteries — not interchangeable with Bosch or Brose
Bosch Fast Charger 6A
Pros
- Charges 50% faster — a 500 Wh pack from 0 to 100% in about 3 hours
- Fully compatible with all Bosch Classic+ batteries (300-625 Wh)
- Intelligent thermal management protects the cells at high current
- Ideal for daily commuters and speed pedelec riders
Cons
- 50 euros more expensive than the standard 4A for a modest time saving
- Larger and heavier (1,050 g) — really a home base, not a travel charger