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21V Battery Charger, fit for 20V 20 Volt Lithium Battery, Compatible with Electric Drill, Chainsaw, Angle Grinder, Impact Wrench, Reciprocating Saw, Leaf Blower, Car Washer Gun, with LED Indicator.
✅ In stock
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Grade
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Nov 11, 2026 4:16 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
TKDY
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓[21V Battery Charger Compatibility:] This 21V 1A lithium battery charger is specifically designed for 18V 20V 21V cordless mini chainsaws, and also compatible with other 20V/21V lithium-ion battery-powered tools like cordless drills, angle grinders, impact wrenches, leaf blowers, car washer guns and electric scissors. It serves as an ideal replacement for popular mini chainsaw brands including Saker, SEYVUM, DINSHARE, VTEK, O-CONN, Aker, SOYUS and more. fitting standard DC 5.5x2.5mm (compatible with 5.5x2.1mm) round plugs with inner positive and outer negative polarity.
✓[Purchase Information:] 1, this charger works only with 18V–21V lithium-ion battery packs – it does NOT support 12V, 14.4V, 24V, or Ni-MH/Ni-Cd batteries. 2, check the plug: it uses a DC round plug with 5.5mm outer and 2.5mm inner diameter (also fits 5.5x2.1mm sockets), and the polarity must be inner positive and outer negative – any other plug size or reverse polarity will not work. 3, verify the output: this charger delivers 21V 1A (compatible with 20V 1A), but if your original charger requires much higher current like 2A or more, this one may charge too slowly or fail to work.
✓[Product Specifications:] Input: AC 100-240V 50-60HZ, Output: DC 21V 1A (Compatible 20V 1A). Cable length: 3.9 FT extra long enough power cord.
✓[Clear LED Charging Indicator] The built-in LED indicator clearly displays the charging status: Red light for charging, Green light for fully charged. No more guessing – you can know the battery status at a glance.
✓[SAFE SWITCHING ADAPTOR:] CE FCC ETL and more Certification. Shortage Protection, Overload Protection, Over Voltage Protection. No need to worry about any fires explosions or shocks occurring.
✓[Compact & User-Friendly Design] Compact and lightweight for easy storage and portability. The robust design with a secure plug ensures a stable connection, making the charging process simple and hassle-free.
⚙️ Specifications
Category Slug
electronics
Stock State
Buyable
Brand
TKDY
Connector Type
5.5*2.5mm
Compatible Devices
For Small Chainsaw Saker, Jujubean, SEYVUM, DINSHARE, O-CONN, VTEK Mini Chainsaw Cordless Universal Battery Charger
Compatible Phone Models
For dc 20v 21v Saker, Jujubean, SEYVUM, DINSHARE, O-CONN, VTEK Mini Chainsaw Cordless Universal Battery Charger
Included Components
1*21W Mini Chainsaw Charger
Special Feature
21V battery charger, Short Circuit Protection
Color
Black
Input Voltage
120 volts_of_alternating_current
Amperage
1 A