CellBench

Eskate Battery Design

Build Eskate Packs
That Climb Hills

Hills kill underpowered packs. Simulate your 10S and 12S configurations with real discharge data to build a battery that delivers full power from the first hill to the last.

Popular eskate pack configurations

These configurations cover everything from street boards to mountain boards. Simulate them in CellBench to see real-world performance.

10S3P Street

10S3P Samsung 30Q

Voltage: 37V nominal

Capacity: 9Ah / 333Wh

The classic eskate build. Fits in most enclosures, handles moderate hills, and gives 15-20 miles of range.

10S4P Range Build

10S4P Samsung 30Q

Voltage: 37V nominal

Capacity: 12Ah / 444Wh

More range and better hill performance thanks to lower per-cell current. The go-to for longer commutes.

12S4P Power Build

12S4P Molicel P42A

Voltage: 44.4V nominal

Capacity: 16.8Ah / 746Wh

Serious power and range. 12S voltage reduces current draw, and P42A handles whatever current is left. Premium build.

10S3P Budget

10S3P Samsung 25R

Voltage: 37V nominal

Capacity: 7.5Ah / 278Wh

Affordable first build. 25R cells are cheap and handle 20A each. Decent for flat terrain riding.

12S3P All-Terrain

12S3P Samsung 40T

Voltage: 44.4V nominal

Capacity: 12Ah / 533Wh

Mountain board setup. 12S for torque on steep terrain, 40T for burst current when you need to power through rough ground.

10S5P Touring

10S5P LG HG2

Voltage: 37V nominal

Capacity: 15Ah / 555Wh

Maximum range on a 10S platform. 5 parallel groups keep per-cell current low for better efficiency and cycle life.

Why eskate builders use CellBench

Simulate hill climbing loads

Hills pull 40-60A from your pack. See exactly how your chosen cells perform at those currents -- not just peak specs, but the actual voltage curve over time.

Find the right parallel count

More P groups means less sag per cell, but more weight and cost. Simulate 3P vs 4P vs 5P with your expected current draw to find the minimum that still delivers.

10S vs 12S comparison

Higher voltage means lower current for the same power. Compare a 10S4P to a 12S3P at the same load and see which one sags less and lasts longer.

Avoid voltage cutoff surprises

Nothing ruins a ride like a sudden low-voltage cutoff on a hill. Simulate worst-case scenarios to make sure your pack stays above cutoff voltage even under heavy load at low SOC.

Frequently asked questions

What voltage should my electric skateboard battery be?

Most electric skateboards use 10S (37V nominal) or 12S (44.4V nominal) configurations. 10S is the standard for most ESCs and motors, while 12S provides more top speed and torque. Higher voltage means lower current draw for the same power, which reduces voltage sag on hills.

How many parallel groups do I need for hill climbing?

Hill climbing draws high sustained current (30-60A from the pack). With a 10S pack, you need enough parallel cells to handle that current. A 10S3P with Samsung 30Q gives you 45A continuous, while 10S4P gives you 60A. Use CellBench to simulate a hill-climbing load and see how your voltage holds up.

What cells handle voltage sag the best for eskate?

The Molicel P42A (45A, 21700) and Samsung 40T (35A, 21700) are top choices for minimizing voltage sag under heavy load. Among 18650 cells, the Samsung 25R and Sony VTC6 handle high current well. CellBench shows you the actual voltage curve at your expected current draw, not just the peak rating.

How does voltage sag affect my electric skateboard?

Voltage sag directly impacts your top speed and hill-climbing ability. When cells sag under load, the ESC receives lower voltage and cannot deliver full power to the motors. Severe sag can trigger low-voltage cutoffs, causing sudden power loss. Choosing cells with low internal resistance and running enough parallel groups minimizes this effect.

Ready to design your eskate battery?

Simulate your pack before you build it. No account required.