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Price
$75.99
2PCS 7.4V 700mah Lithium Battery with USB Charging Cable for HJ812 HJ811 RC Boat Battery High Speed Electric Speed Boat Battery with SM-4P Plug โ€” image 1
RC BatteriesBLLRCโœ“ In stock

2PCS 7.4V 700mah Lithium Battery with USB Charging Cable for HJ812 HJ811 RC Boat Battery High Speed Electric Speed Boat Battery with SM-4P Plug

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$75.99
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About this item
  • Compatible: This 7.4V 700mah Li-ion battery with USB charging cable is suitable for HJ812 HJ811 RC boat.
  • High quality: The battery is crafted from superior materials that make it resistant to damage and enhance durability and practicality. All batteries have undergone rigorous quality testing to guarantee their long-term viability.
  • Function description: The charging cable has a built-in intelligent charging management IC, which separately balances the two batteries in the 7.4V lithium battery separately, so that the batteries can reach the charging balance. Three-stage charging method (constant voltage/constant current/pulse) ensures that the battery can be fully charged. Ensure the safe use of the battery and prolong the service life of the battery.
  • Size: With measurements of 53X28.5X14.5mm and a weight of only 43g/1PCS. This battery has a small size that can easily fit inside remote control toys.
  • Packing List: 2PCS Li-ion battery + 2PCS charging cable.
Product description

Battery parameters: Battery voltage: 7.4V Battery configuration: 2S Battery capacity: 700mAh Discharge rate: 10C Battery weight: 43g/1PCS Battery size: 2.1(in)X1.12(in)X0.57(in) Discharge connector: SM-4P plug Charging connector: SM-4P plug Battery Chemistry: Li-lon battery Charger Description Product name: 7.4V SM-4P positive plug USB charging cable Input parameters: DC 5V 2A Output parameters: DC 4.2Vx2 1000mA Plug type: four-pin balanced charging plug Charging instructions: charging cable connected to the power supply, access to the battery charging, the red charging indicator light is always on. Fully charged red light extinguished, green indicator light on. Battery precautions: 1. Turn off the device when the battery is low to avoid deep discharge. 2. Be sure to disconnect the battery from the device when not in use. 3. Do not use or charge the battery if it is gassed, swollen, leaking, overheated or any other abnormal phenomenon. 4. Never disassemble, puncture, shock or damage the battery. Do not ignite the battery. 5. Do not overcharge the battery. Improper use, such as short-circuiting or overcharging, may result in explosion or fire.

Product details
Brand
BLLRC
Manufacturer
BLLRC
EAN
0754022366322

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
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Excellent
4.5 average rating
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S
Sigalit
๐Ÿ‡ฎ๐Ÿ‡ฑ ยท January 2026
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I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
๐Ÿ‡ฆ๐Ÿ‡บ ยท November 2025
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The package was here in Australia from England in a few days โ€” so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1โ€“2 of 10 reviews

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