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Description
2-3-70 Battery Isolator
This heavy-duty isolator allows charging multiple batteries automatically from one or two alternators and prevents the discharge or ‘dumping” of one battery into another. Each battery is charged according to its need without overcharging and is rated for 12-, 24-, or 36-volt negative ground DC systems.
Features:
Conservatively rated diodes and a rustproof anodized aluminum heat sink case.
Heavy-duty construction
Rated for systems up to 48 volts DC, negative ground
Rust-proof anodized aluminum case
Stainless steel mounting hardware is provided
Protective covers are provided for terminals
Specifications:
Alternator Sources: 2
Battery Bank: 3
Max. Amperage Input Capacity: 70
Stud Terminal Size: 6mm
Dimensions (L x W x H): 6.5 x 4.5 x 3.1 inches
Weight: 4 lbs.
Operating Temperature: -40 to +80 degrees
Duty Cycle: Continuous rating to 50 degrees C Derate linearly to 70% @ 80 degrees C.
Temp. Rise: 5 degrees C at full rated current (mount vertically for optimum cooling)
Voltage Drop: 0.7V @ 50% load, 0.9V @ full load
*Note: These battery isolators are not compatible with self-exciting alternators. The alternator must have an external excitation lead. Please consult the manufacturer of your alternator if you are unsure of your configuration
This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Quick Guide (pdf)
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Refund Policy
30-Day Return Policy We have a 30-day return policy, meaning you have 30 days after receiving your item to request a return or exchange.
Eligibility for Returns To be eligible for a return, your item must be in the same condition that you received it—unworn or unused, including tags, instruction manuals, warranty cards, and in its original packaging. You’ll also need the receipt or proof of purchase. We reserve the right to refuse returns or assess additional fees at our discretion if the merchandise is missing parts or is not in new condition.
Returns accepted for 30 days
Customer is responsible for return shipping. If you request The Yacht Rigger to provide a shipping tag, the shipping cost will be deducted from your refund.
A 3% restocking fee will apply.
No returns on final sale items.
If your return request is accepted, we’ll send you a return shipping label and instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Damages and Warranties Please inspect your order upon receipt and contact us immediately if the item is defective, damaged, or if you received the wrong item. Most items we sell are covered by manufacturers' warranties. If you experience difficulty with a product, please contact the appropriate manufacturer for assistance or email us at sales@theyachtrigger.com.
Exceptions / Non-Returnable Items Certain types of items cannot be returned, such as custom products and special orders. We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges The fastest way to ensure you get what you want is to request a return of the item you have. Once the return is accepted, you can make a separate purchase for the new item to ensure it is in stock.
European Union 14-Day Cooling Off Period If the merchandise is being shipped to the European Union, you have the right to cancel or return your order within 14 days, for any reason and without justification. As above, your item must be in the same condition that you received it—unworn or unused, with tags, instruction manuals, warranty cards, and in its original packaging. You’ll also need the receipt or proof of purchase.
Refunds We will notify you once we’ve received and inspected your return and inform you if the refund was approved. When processing a refund, no additional transaction fee is incurred; however, the original credit card transaction fee is not refunded. If approved, you’ll automatically be refunded to your original payment method within 10 business days. Please allow some time for your bank or credit card company to process and post the refund. If more than 15 business days have passed since we’ve approved your return, please contact us at sales@theyachtrigger.com.
Return Policy Abuse We reserve the right to refuse service to anyone suspected of abusing any policy of The Yacht Rigger.
I haven't installed yet, but Mike and Andre at The Yacht Rigger have been nothing short of excellent and patient in answering my numerous questions pertaining to my project of converting my house bank to LiFePo. Will be starting on the install shortly (which will include the installation of two Class T 400A fuses as well as other items purchased from TYR).
Blue Sea 5121 400AMP Class T Fuse
Customer
Complete Order
This is a review for my complete order of 2/0 AWG Battery Cable Red and Yellow, the Victron BMV-712 Black Smart Battery Monitor, 2 ea Blue Sea 5191 Terminal Fuse Block 30-300AMP with 2 ea Blue Sea 5189 250A Fuse Terminal and 5190 Blue Sea 5190 300A Fuse Terminal (1 installed, 1 standby), and 1 Egis XD Series Single Flex 2 Relay-ACR. All installed by me as directed by The Yacht Rigger electrical experts. New dual starter battery installation was smooth and easy. Works like a champ with no issues! This is the first time since I owned this boat that I can see the stater battery condition!
Victron BMV-712 Black Smart Battery Monitor
Customer
Complete Order
This is a review for my complete order of 2/0 AWG Battery Cable Red and Yellow, the Victron BMV-712 Black Smart Battery Monitor, 2 ea Blue Sea 5191 Terminal Fuse Block 30-300AMP with 2 ea Blue Sea 5189 250A Fuse Terminal and 5190 Blue Sea 5190 300A Fuse Terminal (1 installed, 1 standby), and 1 Egis XD Series Single Flex 2 Relay-ACR. All installed by me as directed by The Yacht Rigger electrical experts. New dual starter battery installation was smooth and easy. Works like a champ with no issues!
Pacer Yellow 2/0 AWG Battery Cable - 50
Conan Disney
Easy install and fast charging
Arco A 275 alternator is almost a perfect fit on a yanmar 4jh3e. Installed with balmar pulley kit . Easy install and fast charging .n more belt dust covering everything.
ARCO Zeus A275L Alternator
Conan Disney
Providing a lot of power.
3@405 watt rec panels on top of Bimini with 2@ Hyundai bifacials on top of Atlantic tower. 1x2 “ anodised aluminum used for supports . Each panel has their own mppt charge controller due to the amount of Shade on my sailboat.panels are providing a lot of power.