Gens ace Batteries 11.1 V (3S)

Gens ace 11.1 V (3S) LiPo Batteries

Gens ace 3S packs are a practical step up from 2S for more speed, torque, and punch without the added size and current demands of 4S. They’re available in hardcase (surface RC) and softpack (air/marine) formats with capacities and C-ratings to match most 1/10 vehicles, 5-inch FPV drones, and mid-size boats.

When to Choose 3S

• Upgrading 1/10 trucks/buggies that are 3S-ready for a 20–50% speed increase (depends on KV and gearing).
• 5-inch FPV drones needing sharp throttle response without moving to heavier 4S/6S builds.
• Mid-size boats seeking higher top speed with manageable heat on ESCs and motors.

Compatibility and Fit

• Voltage: 11.1 V nominal (12.6 V full). Your ESC and motor must be rated for 3S.
• Connectors: Common options include XT60, Deans/T-Plug, EC3/EC5, or IC3/IC5. Match your ESC or use quality adapters sparingly to avoid resistance and heat.
• Case: Hardcase for surface RC durability; softpack for lighter weight in air/marine.
• Size/weight: Typical 3S 5000 mAh hardcase is ~350–420 g; a 3S 1500 mAh softpack is ~120–150 g. Verify tray dimensions and wire clearance.

How to Choose Your Gens ace 3S Pack

Use Case	Capacity	C-Rating	Case	Est. Runtime	Notes
1/10 stadium truck/buggy	4000–6000 mAh	50C+	Hardcase	12–25 min	Check gearing/temps after first runs.
5" FPV freestyle/race	1300–1800 mAh	75C+	Softpack	3–6 min	XT60 common; prioritize low weight.
24–30" sport boat	2200–5000 mAh	50–80C	Soft or hard	6–12 min	Balance speed with ESC/motor temps.

Runtime estimate: minutes ≈ (capacity in Ah ÷ average current in A) × 60. Example: a 5000 mAh (5 Ah) car averaging 20–25 A gives ~12–15 minutes.

Power and C-Rating Made Simple

• Pick higher C for racing, heavy rigs, or long WOT pulls; moderate C is fine for casual bashing.
• Quick check: Required C ≈ peak amps ÷ capacity (Ah). Example: 120 A peak on a 5 Ah pack → 24C minimum; choose some headroom (e.g., 50C).

Charging and Care

• Charge rate: 1C by default (e.g., 5 A for 5000 mAh). Only use higher rates if the specific pack label allows it.
• Balance-charge every time on a LiPo-compatible charger and use a fire-resistant bag or box.
• Storage: 3.75–3.85 V per cell (≈11.25–11.55 V for 3S). Store cool and dry.
• Cutoff: Set ESC LVC around 3.3–3.5 V per cell under load to protect the pack.
• Let packs cool to ambient before recharging; stop using any pack that is swollen, damaged, or hot to the touch.

Common Setup Tips

• Verify 3S support on your ESC and motor before upgrading from 2S.
• Start with conservative gearing; monitor motor and ESC temps (aim for under ~80–90°C / 175–195°F).
• Use the correct connector to minimize resistance and heat; avoid daisy-chained adapters.
• Secure the pack firmly; avoid crushing softpacks with straps or mounts.

Alternatives

• 2S: Better for traction-limited tracks or beginners; cooler temps and longer runtimes.
• 4S: For speed runs or heavy setups if your electronics support it; expect more weight and heat.

FAQ

Can I run a 3S pack on a 2S-rated ESC?

No. Using 3S on a 2S-rated ESC risks immediate failure. Always match the ESC and motor voltage rating.

What connector do Gens ace 3S packs use?

Models vary (XT60, Deans/T-Plug, EC/IC series). Choose a pack that matches your ESC, or re-solder with a proper connector if you are experienced.

What is full, storage, and safe cutoff voltage for 3S?

Full: 12.6 V; storage: ~11.4–11.55 V; cutoff under load: ~9.9–10.5 V total (3.3–3.5 V per cell), depending on your longevity goals.

Do I need a hardcase pack for cars?

Hardcase is recommended for surface RC to protect cells from impacts and chassis flex. Softpacks are preferred in air/marine for weight savings.

How do I estimate runtime?

Runtime (min) ≈ (capacity in Ah ÷ average current in A) × 60. Log current with a wattmeter or data logger for more accurate estimates.