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WIRTHCO

WirthCo Battery Doctor 20040 Instant State of Charge Battery Tester, Push-Button 12 Volt Diagnostic Tool with 24 Inch Lead Wire, Ring Terminals, 3 Amp Fuse Included

WirthCo Battery Doctor 20040 Instant State of Charge Battery Tester, Push-Button 12 Volt Diagnostic Tool with 24 Inch Lead Wire, Ring Terminals, 3 Amp Fuse Included

SKU:W4820040

Regular price $38.99
Regular price Sale price $38.99
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  • Genuine brand-name parts
  • Ships from US warehouse
  • 30-day returns
  • INSTANT STATE OF CHARGE READING - Push the button to see whether your 12 volt battery is weak or fully charged, giving you a fast diagnostic check before heading out on the road, water, or trail.
  • TOOL-FREE CHARGER CONNECTION - Attach a Battery Doctor charger directly to the tester for a simple, tool-free recharge when the battery reads low, so you do not need to disconnect terminals to top off the charge.
  • DIRECT BATTERY INSTALLATION - Ring terminals attach directly onto the battery posts, and the 24 inch lead wire provides slack to position the tester where the indicator is easy to see during a check.
  • REVERSE POLARITY PROTECTED - Built-in reverse polarity protection guards the tester against incorrect hook-up, and an inline 3 Amp fuse is included to help protect the circuit during use.
  • PAIRS WITH BATTERY DOCTOR CHARGERS - Designed to work with the Battery Doctor charger line so you can test and recharge using one connected setup, supporting trucks, cars, boats, RVs, ATVs, motorcycles, and more.
Brand WIRTHCO
Manufacturer part number 20040
UPC / GTIN 10054200400
Weight 0.50 lb
Dimensions (L × W × H) 14.2 × 8 × 4.3 in
Category Electronics & Audio
Condition New — genuine brand-name product
Genuine brand-name product, full manufacturer warranty. Ships from the closest US warehouse — normally within 1–3 business days. Questions before you order? Send us the manufacturer part number above and we’ll confirm. 30-day returns on unused items.

Shipping & delivery

Orders ship from the distributor warehouse closest to you, normally within 1–3 business days of purchase. Standard ground delivery takes 3–7 business days in the continental US; expedited options are shown at checkout. Oversized items (bumpers, running boards, large tonneau covers, some marine equipment) ship LTL freight — we contact you to schedule delivery and a signature is required.

Returns & warranty

Unused, uninstalled parts in original packaging can be returned within 30 days of delivery. A restocking fee of up to 20% may apply depending on the product and supplier, and return shipping is the buyer’s responsibility unless the item arrived defective, damaged or incorrect. Every product carries the full manufacturer warranty. Contact us with your order number to start a return.

Fitment & part numbers

Verify fitment with the manufacturer part number shown above and your vehicle’s year, make, model and trim. If the listing says “Fits select…”, confirm your exact application before ordering. Not sure? Send us your VIN and the part number and we’ll check it for you.

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