Gens Ace iCheck B36

Gens Ace iCheck B36: The Swiss Army Knife (With a Literal Sharp Edge)

The Gens Ace iCheck B36 enters a crowded market of lipo checkers, but it brings some unique G-Tech magic to the table alongside some questionable design choices. If you are looking for a device that does more than just read voltages, this might be your next pit-bag essential—provided you have thick skin.

The Good: More Than Just a Voltage Meter

While most checkers are passive, the B36 acts as a bridge for your mobile devices and servos.

Dual USB-C Power: It features two USB outputs supporting up to 30W. It’s a legitimate field power bank for your phone or tablet.

Integrated Servo Tester: Includes Manual, Auto, and PWM modes. A massive win for fixed-wing pilots and scale builders needing quick adjustments without a transmitter.

Adjustable Low Voltage Cut-off: A critical safety feature that is actually customizable, allowing you to protect your source battery effectively when using the battery as USB powerbank! This is great!

G-Tech Support: If you’re in the Gens Ace ecosystem, the auto-recognition and “plug-and-play” settings are here.

The Bad: Design & Performance Hurdles

We don’t sugarcoat it – there are some “v1.0” pains here that enthusiasts will notice immediately:

The “Razor” Edge: The front edge of the plastic casing is incredibly sharp. We recommend a light pass with some high-grit sandpaper / X acto knife if you value your fingertips.
Boot Time: At 5-6 seconds, it feels sluggish compared to the near-instant (good 1 sec) startup of the ISDT BG8S.
Update with new firmware version (V1.0.7.) takes about 2 seconds. Nice work!

Form Factor: It’s surprisingly large—bigger than a SkyRC B6NEO+ charger. For a device that isn’t a charger, it takes up “significant real estate” if we are very picky.

Balancing Current: In 2026, a 100mA balancing current is barely enough to move the needle on high-capacity packs. It’s more of a “maintainer” than a true balancer.

Technical Specifications

Feature	Detail
USB Output	Dual USB-C (Max 30W) – great!
Functions	Battery Check, Balancing, Servo Test, G-Tech
Balancing Precision	<0.005V (Per Manual)
G-Tech Charge Limit	Preset to 2C (Safety-focused)

Adding cycle count to G-tech batteries

To our surprise, the G-tech chip actually counts up the cycles, even if you charge the packs on different G-tech chargers. Definately great addition knowing the cycle life of the specific G-tech pack. We love this!

The 2C Charge Limit Frustration

The G-Tech system is hard-coded for safety and longevity. Even though modern Gens Ace packs >45C can easily handle 5C charing, the G-Tech protocol limits the “Auto-Charge” feature to 2C to prevent accidental overheating in poorly ventilated areas or with aging cells. To go faster, you currently have to bypass the “Smart” settings (like a tape to isolate the G-tech connector) and go manual.