Ola S1 E-Scooter are the number one selling scooters in India in the electric 2 wheeler market. In 2023 Ola sold 252,647 units (till dec21). Ola S1 comes in three models: Ola S1 Pro, S1 Air and S1X. In this article we will see benchmarking of OLA battery pack for S1. S1 air and X share the same the battery pack so I will put them together. ( Though Ola recently also announced a S1X with 4kWh same as S1 Pro )
Official Website for more details: OLA electric.
Ola is building its gigafactory in Krishnagiri, Tamil Nadu. It will be of 1.4 GWh to begin with and expand to 5GWh. This factory will predominantly Ola internally developed 4680 cells. Today however Ola mostly uses LG Chem 21700 cells.
21700 cells OLA S1 PRO Battery Pack
OLA Future 4680
Specifications of OLA S1
| Specifications | S1 Pro | S1 Air & X |
|---|---|---|
| Total Energy | ||
| Usable Energy (kW) | 3.98 | 2.98 (NMC) 3.02 (NCA) |
| Usable SoC % | ||
| Peak Discharge Power (kW) | 11 | 6 |
| Continuous Power | ||
| Charge Power | ||
| Nominal Voltage (V) | 51.8 | 51.8 (NMC) 50.4 (NCA) |
| Maximum Voltage (V) | 58.8 | 58.8 |
| Minimum Voltage (V) | 35 | 35 |
| Battery pack Capacity (Ah) | 76.8 | 57.6 (NMC) 60 (NCA) |
| Battery Pack Configuration | 14s16p | 14s12p |
| Total number of cells | 224 | 168 |
| battery pack weight (kg) | 19.53 (NMC) 19.86 (NCA) |
Battery Replacement Ola S1 Pro (Youtube Video Video 1 – Shubham Tech Battery replacement Ola S1 and video 2 – Mastermind Tech)
Key E-Scooter specs Range, Charging Speed
| Specifications | S1 Pro | S1 Air & X |
|---|---|---|
| Range (km – Eco Mode) | 180 | 125 |
| Certified Range (km) | 195 | 151 |
| Charging Time (hrs) home | 6.5 | 7.4 |
| Charging Type | Portable 750W | Portable 500W |
| Top Speed (km/hr) | 120 | 90 |
| 0 to 40 km/hr (sec) | 2.6 | 3.3 |
| 0 to 60 km/hr (sec) | 4.5 | 5.5 (S1 Air) 5.7 (S1 X) |
| Motor Power Nominal (kW) | 5.5 | 2.7 |
Battery and Cell Specifications
Source: Zigwheels article.
OLA 2-Wheeler BATTERY PACK TEARDOWN
Ola’s Battery Pack series parallel configuration reverse engineered by XLEX Engineers. Src: xlex.in
| Specifications | S1 Pro | S1 Air & X |
|---|---|---|
| Battery pack configuration | 14s16p | 14s12p |
| Cell Chemistry | NMC811 | NMC811 (LG) NCA (BAK) |
| Cell manufacturer | LG chem | LG Chem and BAK |
| Total Number of Cells | 224 | 168 |
| battery pack weight (kg) | 19.53 (NMC) 19.86 (NCA) | |
| Cell Nominal Voltage (V) | 3.7 | 3.7 (NMC) 3.6 (NCA) |
| Cell capacity (Ah) | 4.8 Ah (most likely) | 4.8 Ah (more likely) 5 Ah (NCA) |
| Cell energy density (Wh) | 18 | 18 |
| Cell Weight (kg) | 67.5 grams approx | 67.5 grams |
| Total cell weight (kg) | 15.12 kg | 11,34 kg (NMC) |
| Cell Type | 21700 (maybe) | 21700 (maybe) |
Source: Rushlane
OLA S1 AIR homologated with two battery manufacturers (LG and BAK )and chemistry (NMC and NCA)
Note: Battery Benchmarking is a free resource with pages covering most of the major OEM’s.
Key Pack Metrics
| Key Pack Metrics | S1 Pro | S1 Air &X |
|---|---|---|
| Gravimetric Energy Density, Pack Wh/kg | 152.6Wh/km (NMC) 152 .3 Wh/km (NCA) | |
| Gravimetric Energy Density, Cell Wh/kg | 266 Wh/kg (Approx) | 266 Wh/kg (NMC) |
| Volumetric Energy Density, Pack Wh/litre | ||
| Volumetric Energy Density, Cell Wh/litre | 742 Wh/litre (Approx) | 742 Wh/litre (NMC) |
| Estimate cost ($/kWh) | $264/kWh | $269/kWh |
| Battery Pack Replacement cost | $1053/Rs 87,298 | $803/Rs 66,549 |
| Cell to pack Ratio | 58% |
S1 PRO
S1 AIR X
Source: Twitter post.
Safety Features
- Passive Air Cooling but battery made out of special plastic material (apparently 5 to 6 times thermal conductivity to normal plastic). plastic is chosen instead of Aluminium to keep the weight of the vehicle down.
- 25 sensors with BMS to measure Voltage, current etc. Metal Panel cover to dissipate heat.
- The Battery pack are all IP67 rating.
Battery capacity calculation not getting, pls share details or share link to go thru
thanks for sharing in depth article
Thank you for the insightful content.