Quick Answer
LiHV batteries charge to 4.35V per cell compared to standard LiPo's 4.2V, giving you roughly 10% more capacity and better voltage sag characteristics. For micro drones like 1S whoops and 2S toothpicks, LiHV is often worth it. For larger, more expensive packs, the faster degradation and shorter lifespan make standard LiPo the safer choice.
What Is LiHV?
LiHV stands for Lithium High Voltage, a variation of standard LiPo chemistry that can safely charge to 4.35V per cell instead of the usual 4.2V. That extra 0.15V per cell might not sound like much, but it translates to real performance gains: higher energy density, better punch-out power, and less voltage sag under load. For 1S whoop pilots chasing maximum performance, LiHV has become the default choice.
The catch? LiHV batteries degrade faster and require chargers that support the higher voltage. You can't just plug them into any charger and expect full performance. If you're running standard 4S or 6S packs for 5-inch builds, the trade-offs rarely make sense given the higher replacement cost.
Key Differences Between LiHV and LiPo
Voltage and Capacity
| Specification | LiPo | LiHV |
|---|---|---|
| Max Charge Voltage | 4.20V per cell | 4.35V per cell |
| Nominal Voltage | 3.7V per cell | 3.8V per cell |
| Energy Density | Standard | ~10% higher |
| Voltage Sag | More pronounced | Lower under load |
In practice, LiHV batteries deliver more usable energy for the same weight. Testing shows that a 550mAh LiHV pack holds around 558mAh actual capacity versus 525mAh for an equivalent LiPo. That extra capacity, combined with the higher voltage, gives you longer flight times and more consistent power throughout the pack.
Performance Characteristics
The real advantage of LiHV shows up in the air. Higher voltage means motors can spin faster, giving you more thrust and sharper response. The lower internal resistance reduces voltage sag during aggressive punch-outs, so your quad feels punchier for longer. For racing and freestyle pilots flying micro drones, these gains are genuinely useful.
However, the performance gap narrows as the pack discharges. By the second half of a flight, LiHV's advantages become less noticeable. If you typically fly until low-voltage warnings anyway, you won't see the full benefit.
Charger Compatibility
Not all chargers support LiHV. You need one that explicitly handles 4.35V charging. Many modern chargers do, but it's worth checking before buying. The Flywoo EasyPower E24 handles both 1S and 2S LiHV packs with USB-C convenience. For charging multiple packs simultaneously, the ViFly WhoopStor V3 charges six 1S batteries at once and includes storage mode.
If you try charging LiHV on a standard LiPo charger, you'll only reach 4.20V per cell. The battery will work, but you're leaving 10% capacity on the table. Conversely, never charge a standard LiPo to 4.35V—this creates a fire risk and will rapidly degrade the battery.
Lifespan and Degradation
Here's where LiHV loses ground. Testing by Oscar Liang showed that after 100 charge cycles, LiHV packs lost 5.4% of their original capacity compared to 3.8% for standard LiPo. The chemistry that enables higher voltage also degrades faster under the stress of repeated charge-discharge cycles.
This is why LiHV makes more sense for small, cheap packs. A 1S 320mAh battery costs under £3 to replace. A 6S 1300mAh pack costs significantly more. For micro drones, the performance gains justify the shorter lifespan. For larger builds, the economics shift toward standard LiPo.
When to Choose LiHV
LiHV shines in specific scenarios:
- 1S whoops and micro drones — The performance gains are real, and replacement costs are low
- 2S toothpick builds — Extra voltage helps offset the weight of the build
- Indoor racing — Every bit of thrust matters in tight spaces
For 5-inch freestyle and larger builds, standard LiPo remains the better choice. The performance gains are marginal relative to the cost, and you'll replace packs less frequently.
Safety Considerations
Both LiHV and LiPo demand respect. The same safety rules apply: never charge unattended, use fireproof storage, and stop using packs that show swelling or damage. For comprehensive safety guidance, read our battery safety guide.
One specific LiHV warning: some flight controllers and ESCs only support up to 16.8V (standard 4S LiPo voltage). Charging a 4S LiHV to 17.4V could exceed component ratings. Always verify your hardware supports the higher voltage before using LiHV packs.
FAQ
Can I charge LiHV to 4.20V instead of 4.35V?
Yes, it's safe. You'll only use about 90% of the pack's capacity, but this extends lifespan and reduces stress on the battery. Some pilots do this deliberately to get LiHV's lower voltage sag benefits without the faster degradation.
Can I charge standard LiPo to 4.35V?
No. Never do this. Overcharging standard LiPo creates fire risk, causes swelling, and rapidly destroys the battery. Always verify your charger is set to the correct chemistry before charging.
Will LiHV work with my existing drone?
Most modern FPV drones handle LiHV fine, but check your flight controller and ESC voltage ratings. If they only support up to 16.8V (4S LiPo), you can't safely use 4S LiHV at full charge.
Which lasts longer, LiHV or LiPo?
Standard LiPo lasts longer in terms of charge cycles. LiHV degrades faster due to the higher voltage stress. For long-term economy, LiPo wins. For maximum performance right now, LiHV wins.
Where can I find LiHV batteries?
Browse our batteries collection for LiHV-compatible options including 1S 320mAh and 1S 330mAh packs designed for micro drones.
For choosing between 4S and 6S for larger builds, see our 4S vs 6S LiPo comparison. For general battery selection advice, read our guide on how to choose FPV batteries.