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 Cable for Old Version 15 Channel 2.4G Huina 1550 550 RC Excavator / 7.2V NiMH

Product ID: 121656197

Details

Battery Capacity
2200
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

€ 38.75

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power your nostalgia with pro-grade endurance!

RECHARGE REPEAT - Rechargeable NiMH chemistry means eco-friendly, cost-effective power for countless adventures.
UNMATCHED RUNTIME - 2200mAh capacity offers up to 3x longer operation than standard 700mAh NiCd packs—stay in the game longer.
LIGHTWEIGHT COMPACT - At just 132g and slim dimensions, it fits seamlessly without weighing down your RC vehicle.
PLUG PLAY PRECISION - SM-2P black 2-pin connector ensures perfect compatibility with old version 15 channel Huina RC models—no guesswork.
POWER UP YOUR RC EXCAVATOR - 7.2V NiMH battery delivers consistent, high-voltage performance for extended play sessions.

The Blomiky 7.2V 2200mAh NiMH rechargeable battery pack is engineered specifically for old version 15 channel Huina RC excavators and compatible models. Featuring a reliable SM-2P 2-pin connector, it delivers triple the runtime of traditional 700mAh NiCd batteries, ensuring longer, uninterrupted remote control fun. Compact and lightweight, this rechargeable battery is a must-have upgrade for serious RC hobbyists looking to revive classic models with modern endurance.

Specifications

ASIN	B07Q2H4X1J
Antenna Location	Remote Control Vehicle
Battery Capacity	2200 milliamp_hours
Battery Cell Composition	NiMH
Battery Cell Type	NiMH
Battery Weight	132 g
Best Sellers Rank	#146,306 in Toys & Games ( See Top 100 in Toys & Games ) #729 in Hobby Remote & App Controlled Vehicle Batteries
Brand	Blomiky
Customer Reviews	4.4 out of 5 stars 368 Reviews
Item Dimensions	3.39 x 1.97 x 0.57 inches
Item Weight	132 g
Manufacturer	Blomiky
Number of Batteries	1 AA batteries required. (included)
Recommended Uses For Product	Remote Control Vehicle
Reusability	Rechargeable
UPC	710627540499
Unit Count	1 Count
Voltage	7.2 volts

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