Pack configuration
Cell type
Series (S)
4S
Parallel (P)
2P
Layout (groups per row)
4
1 row(s)Cell capacity
mAh / cell
Cells8 cells (4S2P)
Nominal voltage14.4 V
Fully charged16.8 V
Total capacity10000 mAh
Total energy144.0 Wh
Wiring diagram (3D)
Nickel strip (spot-welded) Balance wires (one per series junction) Main discharge leads (red + / black −)
Assembly tips
- Parallel first, then series: weld each parallel group first (cells within 0.05V of each other), then connect the groups in series — this avoids large equalizing currents.
- Spot-weld connections: join cells with spot-welded nickel strip. If you must solder, use plenty of flux and work fast so the cells never overheat.
- Always wire the balance leads: every series junction must be brought out to the balance connector, otherwise the charger cannot balance the pack and cells will drift or overcharge.
- Size the nickel strip for current: choose strip width and thickness for your peak discharge current; stack extra strip or add copper braid on high-current runs.
- Insulate: fit insulating rings (fish paper) around the positive terminals and heat-shrink the finished pack to prevent shorts from knocks and abrasion.
- Match your cells: use the same brand, batch, capacity and internal resistance throughout — mixing cells shortens pack life and is a safety risk.