1.8a Battery Charger
Overview
Product sourcing insights & recommendations


The "1.8A battery charger" phrase primarily refers to mid-range smart chargers designed for specific voltages (7.2V–21V) across NiMH and Li-ion chemistries BatteryspaceTenergy. This amperage is considered an optimal balance for charging efficiency and battery lifespan, particularly for capacities between 1800mAh and 8000mAh BatteryspaceQuora.
Technical Insights
- Voltage Specialization: Common configurations include 21V for cordless power tools and 7.2V–14.8V for RC hobbies and specialized portable electronics BatteryspaceTenergyAlibaba.
- Safety Standard Compliance: Market demand is heavily focused on UL-listed and CE-certified smart chargers with automatic voltage detection and temperature sensors to prevent overcharging BatteryspaceTenergy.
Market Trends & Growth
- Cordless Dominance: The global charger market, driven by the shift to cordless industrial and home tools, is projected to grow from $28.1 billion in 2025 to over $40 billion by 2034 (CAGR ~3.9%–8.5%) Alibaba.
- Pricing Dynamics: Retail prices for certified smart chargers range from $28–$32, while B2B wholesale prices on platforms like Alibaba range from $1.22–$15.90 depending on the specific application and order volume AlibabaAlibabaAlibaba.
I have identified several high-potential sourcing options for 1.8A chargers, including power tool replacements and smart RC chargers. Detailed specifications and supplier data are available in the attached files.
Representative 1.8A charging solutions for power tools and hobbyist needs:
Based on the current analysis, you can continue with:
1.8a Battery Charger Nimh Li Ion 21v Ul Listed
Products · 2 lists

21V Power Tool Set Lithium Battery Pack Charger Power Supply 1.8A Charging Current Li-ion Battery Charger
Shantou Chaonan District Simapu Jutai Electrical Appliance Factory🇨🇳CN3 yrs
Pengisi Daya Baterai 21V Power Tool Set Lithium Battery Pack Charger Power Supply 1.8A Charging Current Li-ion Battery Charger
Xiamen Eahunt Electronics Co., Ltd.🇨🇳CN4 yrs
DC 21V 2A AC Wall Mounted Power Supply Adapter with OTP/OVP Protection for Electric Screwdriver 18V 5S Li-ion Battery Pack
Shenzhen Mingxin Power Technologies Co., Ltd.🇨🇳CN14 yrs
10-60W Laptop/Computer Charger with 1-4A Speed 4.2V-21V Range for 1A 2A 3A 4A Li Ion Battery
Shenzhen Unis Technology Co., Ltd.verified🇨🇳CN11 yrs
Mini 18V 21V Battery Charger Suitable for Makita Tools EU/US Plug Power Tool Portable High Quality Smart Fast Li-ion Charging
Shenzhen Lengtion Electronics Co., Ltd.🇨🇳CN13 yrs
15w-72w Gold Supplier Us Uk Eu Au Plug 4.2V 8.4V 12.6v 16.8v 21v 25.2v 1a 2a 3a 1.5a 2.5a 4a Lipo Lithium-ion Battery Charger
SHENZHEN SUNSHINE TECHNOLOGICAL CO., LIMITEDverified🇭🇰HK4 yrs
16.8V 2A 21V 1A 12.6V 1.5A 8.4V 2A 18650 Lithium Battery Charger DC 5.5MM*2.1MM 110-220V Lithium Li-ion Battery Wall Charger
Shenzhen Huaxunneng Technology Co., Ltd.🇨🇳CN12 yrs
4.2v 8.4v 12.6v 16.8v 21v 1a 2a 3a 4a Lithium Li-ion Battery Charger 18650 Intelligent Automatic Battery Charger
Shenzhen Huidetai Trading Co., Ltd.🇨🇳CN6 yrs
42V1A 84V1A 126V1A 168V1A 21V1A Lithium Battery Charger 18650 Polymer Overvoltage Protection
Vetex Industrial Co., Ltd.verified🇨🇳CN2 yrs
High Quality Custom 12.6V 16.8V 1A 2A India Plug Universal Lithium Battery Charger for Kids Toy Car Power Tools
Shantou Yuzhou Electronic Electrical Co., Ltd.verified🇨🇳CN1 yr
Hot Sale Qualified Power Tool Set Electric Hardware Power Tool 21V Lithium Battery Pack Charger
Nantong Quzo Instrument Co., Ltd.🇨🇳CN6 yrs
Universal Industrial 21V Wireless Battery Charger for Power Tools with LED Illumination US/EU Plug Special Features
Jiangsu Zhuoqi Electronic Technology Co., Ltd.verified🇨🇳CN2 yrs
Auto Battery Charger 21v 2a Lithium Ion Battery Charger High Quality Battery Chargers

16.8V 2A 21V 1A 12.6V 1.5A 8.4V 2A 18650 Lithium Battery Charger DC 5.5MM*2.1MM 110-220V
Shenzhen Sanhuang Technology Co., Ltd.🇨🇳CN1 yr
Smart 21V 1A Lithium-ion Battery Charger 5S Li-ion Battery Fast Charger Adapter Electric Drill Tool Battery Charger 21v 1000ma
Shenzhen Sritec Technology Co., Ltd.🇨🇳CN9 yrs
Factory Custom 21V1A1.5A2A Lithium Battery Charger Massager Power Tool Charger
Foshan Guangyuanxing Electronics Co., Ltd.🇨🇳CN6 yrs
Manufacturer Direct 4.2V 8.4V 12V 12.6V 14.6V 16.8V 21V 1A 2A 3A 5A Lithium Li-ion LFP Cordless Power Drill Battery Pack Charger
Shenzhen OPTO365 Technology Co., Ltd.verified🇨🇳CN12 yrs
OEM 4.2V 8.4V 12.6V 16.8V 21V 29.4v 1A 2A 3A Lithium Battery Charger Constant Current Lifepo4 Charger for Electric Scooter
Shenzhen Nuomeixin Technology Co., Ltd.🇨🇳CN4 yrs
16.8V 2A 21V 1A 12.6V 1.5A 8.4V 2A 18650 Lithium Battery Charger DC 5.5MM*2.1MM 110-220V
Shenzhen Beast & Lion Technology Co., Ltd.🇨🇳CN1 yr
Hot 18V 21V Lithium Battery Charger Quick Charge 18V 21V Power Tool Portable Fast Charger US/UK/EU Plug for BL1415 BL1815
Shenzhen Huixin Tengda Trading Co., Ltd.🇨🇳CN6 yrs
18V 21V Lithium Battery Charger Quick Charge 18V 21V Power Tool Portable Fast Charger US/UK/EU Plug for BL1415 BL1815
Shenzhen Junhao Yunxin Technology Co., Ltd.🇨🇳CN1 yr
16.8V 2A 21V 1A 12.6V 1.5A 8.4V 2A 18650 Lithium Battery Charger DC 5.5MM*2.1MM 110-220V
Shenzhen Nordson Electronics Co., Ltd.🇨🇳CN1 yr
Ac 100-240v Dc 21v 1.2a 1.3a 2A18650 Lithium Battery Li-ion Charger EU Plug
Shenzhen Jinhe Technology Co., Ltd.🇨🇳CN7 yrs
Factory Wholesale Switching Power Supply Lithium Battery 21V 12V Charger Professional Adapter
Nantong Pengyou Electromechanical Tools Co., Ltd.🇨🇳CN2 yrs
Universal Power Tool Battery Adaptor 48vdc 42v 25.2v 21v 16.8v 12v 8.4v 2600mah 2a 3a 18659 16850 18350 Adapter Battery Charger
Shenzhen Suppower Tech. Co., Ltd.🇨🇳CN22 yrs
20W Battery Charger 21V 0.5a 1a Chargers Adapters for 5S 18V 18.5V Lithium Ion Batteries Power Drills Battery Pack
QUAWINTEC TECHNOLOGY CO., LIMITED🇨🇳CN4 yrs
21V 1A Universal Lithium Battery Charger AC/DC Adapter Power Supply Cord Switching Transformer for Infant Monitor CCTV Cameras
Shenzhen Kabbol Technology Co., Ltd.verified🇨🇳CN13 yrs
Replacement 25.2V 21.6V Li-ion Battery Charger for Dyson V6 V7 V8 V10 V11 30W Electric Output DC Port Compatible
Shenzhen Boye Energy Co., Ltd.verified🇨🇳CN13 yrs
KAFUWELL DY4213 Universal Special GS Plug Charger 21v Battery Charger Replacement for Makita Battery
Hangzhou Ok Import & Export Co., Ltd.verified🇨🇳CN14 yrs
KAFUWELL DY4213 Universal Special GS Plug Charger 21v Battery Charger Replacement for Makita Battery
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Sources & References
28 sources cited · Verified industry data & reports

Is there a difference between charging 9V@3A and 15V ...
Reddit · r/batteries
My specific use case is the steam deck, but this is really more of a general knowledge question because I would like to learn. The extent of my ...

Battery charger
Wikipedia
These chargers vary from 1 kW to 22 kW maximum charge rate. Prices range from $400 to $4,500.

CH-L14807 Smart Charger (1.8A) for 14.8 Li-ion/Polymer ...
BatterySpace.com
CH-L14818 is a UL listed smart battery charger designed to charge 14.8V Li-Ion/Polymer battery with capacity ≥ 2.2Ah. 2) Features: a) Worldwide input AC ...

Is there any problem using a 2.1 amp charger for a 1.8 ...
Quora
When you connect the battery with charger, circuit gets closed and 1.8A current will start to flow throughout. You can use any charger that ...

Rapid Charging for Battery-Powered Portable Devices
Battery Power Online
To achieve a fast-charging function, use a higher power adapter like 9 V/1.8 A and 12 V/2 A. In addition to charging the battery, a battery ...

Tenergy Charger for 7.2V - 12V NiMH/NiCD Battery Pack
Tenergy Power
Charger Specifications: · Input: AC 100V-240V · Compatible with: 7.2V to 12V NiMH / NiCD Battery Packs · Charging Current: 0.9A/1.8A · Applicable Battery Types: ...
