Wirthco
WirthCo Battery Doctor 20092 Dual Battery Isolator, 125/150 Amp, 12 Volt, Electronic Parallel Charging with Manual Override, IP62 Water Resistant, 4 x 4 x 2 Inch
WirthCo Battery Doctor 20092 Dual Battery Isolator, 125/150 Amp, 12 Volt, Electronic Parallel Charging with Manual Override, IP62 Water Resistant, 4 x 4 x 2 Inch
SKU:W4820092
In stock
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- Free shipping on $70+
- Ships from US warehouse
- 30-day returns
The Wirthco 20092 is a battery doctor dual battery isolator, 125/150.
Key features
- Dual Battery Management: Automatically charges a 12 volt auxiliary battery from a single alternator while keeping the starting battery isolated, rated at 125 Amp continuous and 150 Amp peak for vehicles with an auxiliary battery.
- Manual Override Jump Start: A single push of the override and reset button parallels both batteries so a charged auxiliary battery can crank the engine when the starting battery is low, then returns to automatic charging once the engine starts.
- Compact Electronic Design: Uses electronic switching control technology in a 4 by 4 by 2 inch housing that is smaller and lighter than standard isolators, with surface, firewall, or battery-side mounting and an included mounting bracket
- Overcurrent And Surge Protected: Built-in surge protection and overcurrent protection guard the isolator and charging system in vehicles with electronic ignition systems, with no voltage drop. For use with lead acid flooded, AGM, and gel batteries.
- Water Resistant Ip62 Housing: IP62 rated construction makes the isolator suitable for marine installations, and priority charging keeps the starting battery topped up before current is shared with the second battery.
Before you order
- Check the group size, terminal layout and cold-cranking amps against your current battery.
Specifications
| Brand | Wirthco |
|---|---|
| Manufacturer part number | 20092 |
| Part type | Auto Accessory |
| UPC / GTIN | 10054200929 |
| Weight | 1.50 lb |
| Dimensions (L × W × H) | 5.1 × 5.7 × 2.3 in |
| Category | Electronics & Audio |
| Condition | New |
| Returns | 30-day returns on unused items |
Questions
What does shipping cost?
Standard shipping is free on orders of $70 or more to the lower 48 states and DC, and $8 below that. Express is $15 at checkout. Orders ship the same business day when placed early in the day, otherwise the next business day; standard delivery takes 3–5 business days. Alaska and Hawaii are charged by weight at checkout.
Can I return it?
Yes — unused items in the original packaging can be returned within 30 days of delivery. A restocking fee may apply; see our refund policy.
Shipping & delivery
Shipping & delivery
Free standard shipping on orders of $70 or more to the lower 48 states and DC; $8 on smaller orders. Express is $15 at checkout; Alaska and Hawaii are charged by weight. Orders ship from the warehouse closest to you — the same business day, or the next business day if ordered late in the day, on a weekend or holiday. Standard delivery takes 3–5 business days. 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
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 return shipping is the buyer’s responsibility unless the item arrived defective, damaged or incorrect. Items marked Final sale can't be returned. If a part fails, contact us with your order number and we'll help with the manufacturer's warranty claim.
Fitment & part numbers
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.
