Tattu Gens ace iMars D300 G-Tech Channel AC/DC 300W/700W RC Battery Charger-US/EU White

The iMars D300 Charger is a versatile and intelligent charger that supports both charging and discharging. As a member of G-Tech Eco, Imars D300 Charger is designed specifically for the G-Tech smart battery, but is also compatible with non-smart batteries. 

When a G-Tech smart battery is connected to the iMars D300 charger, the charger will automatically identify the battery type, voltage through the smart balance connector, and charging current recommended by the battery manufacturer. For non-smart batteries, it is necessary to manually select the battery type and the required working mode to get started. 

The iMars D300 Charger offers a range of features, including dual channel AC/DC smart balance charging, a small and lightweight portable design, a wide-view IPS display, and high power charging. 

The charger has seven operating modes: charge, discharge, balance, storage, ExtDischarge, SyncCharging, and digital power supply. It offers simple to use and operation.

Unleash extreme charging speeds with 700W DC (or 300W AC) power – perfect for rapidly juicing up 6S LiPos between FPV sessions. The high-efficiency design minimizes energy waste, while advanced thermal management keeps temps stable even during back-to-back charges. Say goodbye to long waits and hello to more airtime!

Charge two batteries simultaneously with independent G-Tech Channels – no more swapping packs between flights! Each channel features precision voltage/current control, ensuring both batteries receive optimal care. Ideal for racers who need multiple packs ready in minutes, not hours.

Compact and lightweight (just XX lbs), the D300 fits effortlessly in any FPV backpack. Its rugged casing survives rough handling, while the foldable plug (EU/US options) makes it perfect for travel. Fly locally or abroad – your charger goes wherever you do!

Active balancing technology monitors each cell in real-time, preventing overcharge and extending LiPo lifespan. Combined with adjustable charge currents (0.1-10A), you can customize charging for safety or speed. Your batteries stay healthier, longer – saving you money!

Tattu Gens ace iMars D300 Buying Guide: Choose the Right Charger for FPV

The Tattu Gens ace iMars D300 is a dual-channel AC/DC smart charger designed for RC and FPV batteries. It delivers up to 300W from AC power or 700W from DC power, with charging current up to 16A per channel. It supports LiPo, LiHV and LiFe batteries from 1S to 6S, making it suitable for most FPV battery setups. Its G-Tech integration can automatically recognize compatible smart batteries and simplify the charging process.

Why the iMars D300 Fits 5-Inch 6S FPV

For pilots flying 5-inch 6S freestyle or racing drones, a charger needs to do more than simply provide the correct voltage. Charging multiple packs efficiently is important when preparing for a long flying session, while AC/DC input gives you flexibility between home and field charging.

The iMars D300 provides two independent charging channels and can charge two batteries simultaneously. When powered through DC, it provides up to 350W per channel, with a combined maximum of 700W. On AC power, the maximum charging power is 300W.

For a typical FPV pilot, this means the D300 can serve as both a home charger and a field charger without requiring a separate AC charger.

iMars D300 vs GEPRC HOTA D6 Pro vs ToolkitRC M6D

There is no need to compare the D300 with every charger on the market. Within MEPSKING's current charger selection, the GEPRC HOTA D6 Pro 325W and ToolkitRC M6D 500W provide useful points of comparison because their charging configurations are clearly different.

The iMars D300 has the clearest advantage for pilots using Gens ace/Tattu G-Tech batteries. Its 300W AC input is also higher than the D6 Pro's 200W AC rating, while its DC output reaches 700W total.

The GEPRC HOTA D6 Pro 325W is a strong alternative if G-Tech integration is not important and you want features such as wireless phone charging. It provides up to 325W per channel on DC, 650W total, and supports AC/DC input.

The ToolkitRC M6D targets a different use case. It is much smaller and lighter at 220g and can provide up to 500W in synchronous mode, but it is DC-only, so you need an external DC power source. This makes it especially attractive for pilots who already have a suitable field power supply.

This makes the D300 a particularly balanced option for pilots who want one charger for both home and field use, while the D6 Pro and M6D make more sense when their specific features match your setup.

G-Tech Smart Charging: Is It Worth It?

One of the most distinctive features of the D300 is its G-Tech smart battery support.

When a compatible G-Tech battery is connected, the charger can identify the battery type, voltage and recommended charging current. Non-smart batteries remain supported through manual configuration.

For pilots who mainly use conventional FPV batteries from different brands, G-Tech is not essential. However, if your battery collection already includes compatible Tattu or Gens ace smart batteries, the automatic recognition makes everyday charging more convenient.

The D300 also supports multiple operating modes, including Charge, Discharge, Balance, Storage, External Discharge, Sync Charging and Digital Power Supply.

What Real-World Testing and Users Say

Independent hands-on feedback generally supports the D300's appeal as a compact dual-channel charger. Recent independent testing has highlighted its clear 2.4-inch display, dual-channel operation and ability to use the full 700W DC output when appropriate.

Long-term community feedback is also generally positive, with users frequently mentioning the simple interface, compact size and convenience of charging two batteries simultaneously. Some users have reported limitations or firmware-update issues, so the charger should still be treated as an electronic device that benefits from proper setup and maintenance. These are individual user experiences rather than evidence of a general product defect.

A useful point from real-world testing is that charger power should be considered together with battery capacity. For example, very high-capacity 6S batteries may not always be charged at a full 1C rate on every channel under AC power. The D300 can still charge them safely, but charging may take longer depending on the battery capacity and available charging power.

Recommended 5-Inch 6S Charging Setup

MEPSKING currently features the D300, Tattu R-Line V6 1480mAh battery and MEPS fireproof LiPo bag together in its FPV battery charging and safety recommendation.

For pilots who mainly fly racing, the 1480mAh 6S combination keeps the setup more weight-conscious. For freestyle pilots who want additional capacity, the 1600mAh 6S version is a more suitable alternative.

Final Recommendation

The Tattu Gens ace iMars D300 is best suited to FPV pilots who want a dual-channel AC/DC charger with high charging power, 1–6S battery support and G-Tech smart battery integration.

For a 5-inch 6S setup, the Tattu R-Line V6 1480mAh 160C 6S is the better starting point when agility and weight are priorities, while the 1600mAh 160C 6S version makes more sense for pilots who want more capacity.

Compared with the GEPRC HOTA D6 Pro 325W, the D300 stands out with G-Tech support and higher AC/DC charging specifications. Compared with the ToolkitRC M6D 500W, the D300 offers built-in AC power and greater overall charging flexibility, while the M6D

Specification

Input Voltage: AC 100-240V; DC 7-30V 

output Voltage: DC 1~30V Max. 

Input Current: DC 34A Max. 

Discharging Power: 15W*2 Maximum 

Charging Power: AC 300W; DC 350W*2 

Charge Current: 0.1-16A*2 

Discharge Current: 0.1~3A*2 

Balance Current: 1.2A/Cell max*2 

Cell Balancing: 1~6S USB Output: 5V / 2.4A 

Display Type: 2.4 inch IPS LCD 

Display Supported Battery Chemistry: LiPo / LiHV / LiFe 1~6S; 

NiMH  1~16S Dimensions: 145x76x62 mm 

Product Net Weight: 530g 

Accessories Included: AC Input Cable / XT60-T adapter / XT60-EC5 adapter / XT60-EC3 adapter

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