SKU: 22021799530

Mastervolt Battery Mate 2503ig Battery Isolator 200 Amp 3 Battery

Sale price$189.45 Regular price$210.50
Save 10%

Pay in installments of $52.62 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Mastervolt Battery Mate 2503ig Battery Isolator 200 Amp 3 BatteryMstervolt Battery Mate 2503 IG Battery isolator Model: 83116035 Battery Mate battery isolators with a negligible voltage drop Clear monitoring Robust and durable Fast installation Onboard systems usually consist of two or more batteries that function independently when powering the 12 or 24 V consumers. These batteries require independent charging with reliable battery isolators or battery combiners. While BI battery isolators are conventional diode

Mstervolt Battery Mate 2503 IG Battery isolator

Model: 83116035
  • Battery Mate battery isolators with a negligible voltage drop
  • Clear monitoring
  • Robust and durable
  • Fast installation

Onboard systems usually consist of two or more batteries that function independently when powering the 12 or 24 V consumers. These batteries require independent charging with reliable battery isolators or battery combiners.

While BI battery isolators are conventional diode splitters, the Battery Mate’s technology is electronic and includes mosfets (transistors). Its components compensate for the voltage drop and ensure that charging continues at the right voltage level, even with several battery banks.

The Battery Mate is compatible with any type of alternator/battery charger, in both existing and new systems. As the voltage loss between the alternator and battery is negligible, the Battery Mate performs far better than conventional battery isolators. This ensures fast and complete charging of your batteries without having to make additional adjustments to the alternator.

The Battery Mate is most suitable for charging multiple batteries, possibly with various brands of alternators, even if their charge voltage cannot be adjusted. It can charge two or three batteries with a very high yield and without voltage loss.

Models 1602/1603 are suitable for alternators with a maximum charge current of 160 amp, the Battery Mate 2503 is ideal for alternators with a maximum charge current of 250 amp.

Safety guaranteed: The Battery Mate LED display indicates whether the power input is active.

Completely corrosion-proof material with aluminium heat sinks, the electronic components are encased in synthetic materials.

The synthetic end plates feature connection lugs, the solid bolt connections with nuts and locking rings ensure easy installation.

Specifications
Number of battery outlets 3
Dimensions, hxwxd 8.1 x 5.5 x 3.1 inch
Weight 2.2 lb
Max. output battery charger 200 a
Max. output alternator 250 a
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 22021799530

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 9 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Chuck
San Leandro, US
★★★★★ 2
handlebar mittens
Too big. If using during snow plowing they are a burden due to need to take hands off controls, and shift from forward to reverse. Might be okay if just riding around on trails, etc.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 8, 2025
S
Verified Purchase
Some guy
Draper, US
★★★★★ 4
Good quality, not great on clutch
The quality of these is very good. They break the wind very well. Too well, actually. On my bike when going above 60 MPH they press hard enough on the clutch to be a problem. I'm sure I'll still use them but they won't be of any value on the interstate. It's possible to hold the clutch while using them but, for me at least, I don't have the strength to do it for my 45 minute commute. Unfortunately, the openings seem to fold up making it difficult to get gloved hands into them quickly, which is my reason for subtracting a star.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 12, 2025
F
Verified Purchase
Fabian
San Leandro, US
★★★★★ 5
Sedan
Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Chrome, Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Chrome
Perfect fit for a 2002 325i sedan, locks in place and does not fall out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
C
Verified Purchase
Charles Livingston
Omaha, US
★★★★★ 5
Perfect fit
Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Glossy Black
Perfect fit for the 2004 E46 BMW.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025
M
Verified Purchase
MR
Los Angeles, US
★★★★★ 4
Price
Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Glossy Black M-Color Dual Line
I installed this on an e46 325ix sedan, they only worked, one of them is just a little loose. I don't know how long they last, because every time I open the bonnet, the lever bothers me a little?
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2023

recommand products