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- Brawn Spare Battery
Brawn Spare Battery
A 48V 18 Ah (864 Wh) original e-bike battery from Heybike.
48 Vnominal voltage
864 Whenergy
$599listed price
$0.69per Wh (48V median $0.64)
Specifications
- Nominal voltage
- 48 V
- Capacity
- 18 Ah
- Energy
- 864 Wh
- Full-charge voltage
- 54.6 V
- Type
- Original equipment (OEM)
- Seller
- Heybike
- Listed price
- $599
- Price per Wh
- $0.69
E-bikes this pack matches
5 Heybike-system models with original packs of 960 Wh or less
| Model | Year | Original battery | Wh |
|---|---|---|---|
| Heybike Hybrid | 2026 | 48V 18Ah | 864 |
| Heybike Venus | 2026 | 48V 14Ah | 680 |
| Heybike Alpha | 2025 | 48V 14.1Ah | 680 |
| Heybike Mars 3.0 | 2025 | 48V 13Ah | 624 |
| Heybike Ranger 3.0 Pro | 2025 | 48V 15Ah | 720 |
Fit checklist: mounts and connectors
Other 48V packs by price per Wh
Cheapest 48V packs per watt-hour
| Pack | Seller | Wh | Price | $/Wh |
|---|---|---|---|---|
| Unit Pack Power 48V 40Ah battery | Unit Pack Power | 1,920 | $358 | 0.19 |
| Unit Pack Power 48V 45Ah battery | Unit Pack Power | 2,160 | $447 | 0.21 |
| EM3ev 48V 46Ah battery | EM3ev | 2,208 | $470 | 0.21 |
| Unit Pack Power 48V 26Ah Polly battery | Unit Pack Power | 1,248 | $295 | 0.24 |
| Unit Pack Power 48V 35Ah battery | Unit Pack Power | 1,680 | $408 | 0.24 |
| Unit Pack Power 48V 24Ah battery | Unit Pack Power | 1,152 | $282 | 0.24 |
| Unit Pack Power 48V 18.2Ah Polly battery | Unit Pack Power | 874 | $214 | 0.24 |
| Unit Pack Power 48V 24Ah Polly battery | Unit Pack Power | 1,152 | $298 | 0.26 |
Frequently asked questions
Will the Brawn Spare Battery fit my e-bike?
It is a 48V pack, so the bike must run a 48V system. Beyond voltage, the case or mount, the discharge connector and the charger port must match, and the BMS rating must cover the controller's peak current.
How far will a 864 Wh battery go?
About 43 to 72 miles depending on assist level, terrain and rider weight (12 to 20 Wh per mile).
Is $599 good value?
Heybike lists it at $0.69 per Wh. The median 48V pack we track is $0.64 per Wh, so this pack is above the median.