Tamiya Classics: Grasshopper and Beyond
First released in the 1980s, models like the Grasshopper, Hornet, Lunch Box, Midnight Pumpkin and The Frog remain the go-to kits for new drivers and nostalgia builds. Their simple 2WD drivetrains, bathtub chassis and sealed gearboxes make them ideal platforms for today’s LiPo technology.
Why Upgrade from NiMH to 2S LiPo
- Higher energy density: more runtime from a similar footprint.
- Lower voltage sag: steadier punch throughout the run.
- Faster charging: balance charge with proper LiPo settings.
- Hard-case protection: added durability for off-road use.
Safety notes
charge with a LiPo-compatible balance charger only; check ESC compatibility (e.g., Grasshopper’s 101BK) and low-voltage cutoff; inspect connectors for warmth after first runs; prefer adapter leads with 14–16 AWG wire and correct polarity.
- Lightweight handling: ~2200–3200 mAh (nimble feel, shorter stints)
- Balanced all-round: ~4000–5200 mAh (great mix of punch and runtime)
- Endurance focus: ~5600–6600 mAh (long sessions, heavier pack)
Connector Plan: Deans Plug with Tamiya Adapter
All packs in this collection use a Deans (T-Plug). To keep your vintage wiring intact, pair the battery with a Deans-to-Tamiya adapter lead. Choose quality adapters with 14–16 AWG silicone wire, verify polarity before use, and check for excess heat at connectors after the first shakedown run.
For a step-by-step setup, see our guide: Tamiya Grasshopper Battery Upgrade Guide.
Recommended Voltage, Capacity & Size
- Voltage: 2S (7.4V)
- Capacity: 2200–6600 mAh (sweet spot 4000–5200 mAh)
- Case: 2S hard-case, ~138 × 46 × 25 mm (verify tray)
- Plug: Deans (T-Plug) battery side, Tamiya at vehicle via adapter
Compatible Models
Grasshopper / Grasshopper II / The Hornet / Lunch Box / Midnight Pumpkin / The Frog / and other classic Tamiya 2WD buggies and wheelie trucks using the Tamiya battery connector.
FAQ
Q: Can I run 2S LiPo on a stock re-release ESC?
A: Most re-release kits that include basic brushed ESCs can run 2S LiPo. Confirm your specific ESC (e.g., 101BK) supports 2S and use a LiPo-safe low-voltage cutoff or an external alarm if needed.
Q: Which capacity should I choose?
A: 4000–5200 mAh delivers the best balance of weight, punch, and runtime. Go 2200–3200 mAh for a lighter, more agile feel; 5600–6600 mAh for longer sessions.
Q: Why Deans instead of the original Tamiya plug?
A: Deans has lower contact resistance and a more secure fit. Using a short Deans-to-Tamiya adapter preserves originality while improving electrical performance.
Q: Do I need a special charger?
A: Yes. Use a LiPo balance charger and follow safe-charge practices (balance mode, correct cell count, fire-safe container).