is this a good replacement for RC unit with a ni-mh 1800mah 7.2v 6 cell battery currently in it?

I think it would be a good replacement. But there are some things you have to look into. Look at the physical size of the battery pack. Make sure the new one will fit into the RC unit where the old one went. I have no way of knowing what kind of plug you have on your RC unit. The plug on the new battery may be different. If the plugs are the same then you are in luck. If they are not the same you may have trouble using the included USB charging cable since it plugs into the main plug for the battery pack. As far as the voltage goes, they are the same so no problems there. The higher mah rating for the new battery is OK too as it should last longer than the old one did. Best of luck!

What kind of charger can i use to charge it? Can i use a Samsung s8 plus charger to charge this type of battery?

Yes， any Wall USB charger can charge this battery.or power bank or computer USB port both ok,thanks.

Will a 7.2v battery work on a 6.0v car? I was looking to upgrade my battery pack.

Not work, if same SM-2P plug, 6V NiMH battery choose below link: https://www.amazon.com/dp/B07PY8R3F4?ref=myi_title_dp

Le sirve aun carro decintrol remoto escala 112

Si me funcionó y estoy contento con el resultado de esta batería.

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Blomiky 7.2V 2200mAh Ni-MH Rechargeable AA Battery Pack with SM-2P Black Plug and USB Charger Cable for Old Version 15 Channel 2.4G Huina 1550 550 RC Excavator 7.2V NiMH

Product ID: 558582865

Details

Battery capacity
2200 Milliamp
Battery cell composition
NiMH
Brand
Blomiky
Number of batteries
1 AA batteries
Recommended uses for product
Remote Control

⚡2200mAh long-lasting capacity

🔋7.2V high voltage power

🔌SM-2P 2-pin connector plug

B/.96

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Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚜 Power your nostalgia with unstoppable RC energy!

EXTENDED RUN TIME - 2200mAh NiMH battery offers up to 3x longer playtime than standard 700mAh NiCd packs—stay in the game longer.
PERFECT VINTAGE FIT - SM-2P black 2-pin connector designed exclusively for old version 15 channel Huina and compatible RC models—no awkward adapters needed.
LIGHTWEIGHT COMPACT - Slim 85x51x14mm size and 132g weight keep your RC vehicle agile without added bulk.
POWER UP YOUR RC PLAY - 7.2V voltage delivers consistent, high-performance energy for your vintage RC excavator and trucks.
PLUG PLAY CONVENIENCE - Includes USB charger cable for easy, on-the-go recharging—never miss a moment of action.

The Blomiky 7.2V 2200mAh NiMH rechargeable battery pack is engineered specifically for old version 15 channel 2.4G Huina RC excavators and compatible models. Featuring a durable SM-2P 2-pin connector and a high-capacity 2200mAh cell, it delivers up to three times longer runtime than traditional 700mAh NiCd batteries. Compact and lightweight, it includes a USB charger cable for hassle-free recharging, making it the ultimate power upgrade for vintage RC enthusiasts.

Specifications

ASIN	B07Q2H4X1J
Antenna Location	Remote Control Vehicle
Battery Capacity	2200 Milliamp Hours
Battery Cell Type	NiMH
Battery Weight	132 Grams
Best Sellers Rank	#158,545 in Toys ( See Top 100 in Toys ) #289 in RC Batteries
Brand	Blomiky
Customer Reviews	4.4 4.4 out of 5 stars (351)
Item Dimensions	8.6 x 5 x 1.4 centimeters
Item Weight	132 Grams
Manufacturer	Blomiky
Number of Batteries	1 AA batteries required. (included)
Reusability	Rechargeable
UPC	710627540499
Voltage	7.2 Volts

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