Ovonic Batteries 14.8 V (4S)

Ovonic 14.8 V (4S) LiPo Batteries

Ovonic 4S packs deliver higher voltage, solid punch, and consistent output under load—ideal for 1/8 buggies and truggies, speed-run builds, larger RC boats, and performance quads. Choose hard-case packs for ground vehicles or soft-case packs where weight and space matter.

When to Choose 4S

• Use 4S if: your ESC and motor are 4S-rated, you want more speed/torque without excessive current draw, or you need stronger mid-run voltage for long pulls (speed runs, boats, tall grass).
• Avoid/adjust: if your platform is 2S/3S-only, if drivetrain temps are already high, or if the battery tray is too small—verify fit and gear down as needed.

Picking the Right Ovonic 4S Pack

• Capacity (mAh): Ground use: 5000–6500 mAh balances runtime and weight. Quads: 1300–1800 mAh for freestyle and cruising.
• Discharge rating (C): For 1/8 buggies/truggies and boats, look for 50C or higher to support sustained current. Higher C can reduce voltage sag under heavy throttle.
• Case type: Hard-case for impact protection in cars/trucks; soft-case for aircraft/boats where weight and space are critical.
• Connectors: Match your ESC (e.g., EC5/IC5, XT90, Deans/T). Avoid high-current adapters, which add resistance and heat.
• Size/fit: Check tray dimensions and strap locations. Many 5000–6500 mAh 4S hard-cases fall near 135–140 × 45–48 × 47–50 mm; verify your specific pack and chassis.

Estimated Runtime

Use case	Typical pack	Driving style	Runtime
1/8 buggy/truggy	4S 5000–6500 mAh	Moderate bashing	12–20 min
1/8 buggy/truggy	4S 5000–6500 mAh	Club racing	8–12 min
Speed-run car	4S 5000–6500 mAh	High-speed passes	2–5 min
RC boat	4S 4000–6000 mAh	Mixed throttle	6–12 min
5" quad	4S 1300–1500 mAh	Freestyle	3–5 min

Actual time varies with gearing, prop/kv, terrain, and driving style.

Setup and Tuning Tips

• Compatibility: Confirm your ESC and motor are rated for 4S. Update ESC firmware if needed.
• Gearing: Moving up in voltage? Start 1–2 teeth smaller on the pinion (or ~10–20% lower overall ratio) and check temps.
• ESC settings: Reduce motor timing and punch to manage heat and drivetrain wear. Set low-voltage cutoff to ~3.3–3.5 V per cell under load.
• Cooling: Add a motor/ESC fan for heavy use (speed runs, grass, boats). Keep pack temps below ~60°C (140°F).
• Mounting: Use straps plus foam to eliminate movement. Protect from sharp edges and water ingress.

Charging and Care

• Charge rate: Unless the label specifies otherwise, charge at 1C (e.g., 5000 mAh → 5 A). Expect ~60–90 minutes including balancing.
• Balance charge: Always use a balance charger for 4S LiPo. Verify cell voltages remain within ~0.03–0.05 V of each other after charging.
• Storage: Store at 3.75–3.85 V per cell (40–60% state of charge), in a cool, dry place (15–25°C / 59–77°F).
• Inspection: Stop using packs that puff, overheat, or show damaged wiring/shrink. Check connectors for looseness and discoloration.

Alternatives and Pairing

• Lower voltage (3S): Use when traction is limited or run time is the priority over outright speed.
• Higher voltage (6S): Consider for heavy vehicles or extreme speed, but ensure full system compatibility and watch temps closely.
• Series/parallel: Only run packs in series/parallel if they are the same capacity, C rating, age, and state of charge.

Safety Notes

• Never charge unattended. Use a LiPo-safe bag or fire-resistant surface.
• Do not exceed voltage limits (charge to 4.20 V/cell max; do not over-discharge below ~3.3 V/cell under load).
• Keep packs dry; if submerged, retire the pack safely.
• Transport with terminals protected against short circuits.

FAQ

Is a hard-case necessary?

For cars and trucks, yes—hard-cases help prevent impact and abrasion damage. For boats and aircraft, soft-cases are common to save weight and space, provided they are securely mounted and protected.

What C rating should I choose?

For 1/8-scale ground vehicles and boats, 50C or higher works well for most setups. If you do long full-throttle pulls (speed runs, heavy boats), consider higher C to reduce voltage sag.

Can I run two 4S packs in series for 8S?

Yes, if your ESC and motor are 8S-rated and both packs are the same capacity, C rating, age, and charge level. Use matched packs only.

What low-voltage cutoff should I use?

Set LVC around 3.3–3.5 V per cell under load. Stop running if you notice power sag to avoid over-discharging.

How should I break in a new pack?

For the first 2–3 cycles, avoid sustained full-throttle pulls and keep temperatures moderate. This helps verify health and balance behavior.