415/418 - Replacement Service Battery AGM 12V/160Ah?

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Replacement Service Battery AGM 12V/160Ah?

Printed From: myHanse.com
Category: Hints & Tips
Forum Name: 415/418
Forum Description: 415/418 Hints, Tips and News
URL: https://www.myhanse.com/forum_posts.asp?TID=15383
Printed Date: 27 March 2026 at 03:41
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com

Topic: Replacement Service Battery AGM 12V/160Ah?

Posted By: Protea
Subject: Replacement Service Battery AGM 12V/160Ah?
Date Posted: 04 October 2025 at 20:55

I need to replace my two Service batteries (AGM 2V/160ah). My broker and Boathoom list the Longex AGM 2V/160ah battery as being compatible for Hanse 418s and my boat, a Dehler38. However both of these boats need two batteries with flat terminal heads that protrude far enough for a battery bridge (clamp) to attach them together. I cannot find any AGM 2V/160ah batteries with “flat” not rounded terminals with holes in them to install in these sailboats. Ordering batteries from Germany is also very expensive. West Marine has an AGM 2V/160ah battery but it does not have the flat terminal heads either. What are people using in the US?

Replies:

Posted By: Lyn
Date Posted: 04 October 2025 at 22:19

When my AGM 165Ah (x2) bow thruster bank went out, I had similar difficulty. I did go the West Marine route with this https://bluemarine.com/products/victron-agm-deep-cycle-batteries?variant=49983685984552&country=US&currency=USD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&gad_source=1&gad_campaignid=21408928976&gbraid=0AAAAAqKlSrhxRfTi_D5JpiMnGe3y0hc7H&gclid=CjwKCAjwi4PHBhA-EiwAnjTHuZlL0wCcMJzGZbtENMYFkmsDe3cAP0rGCYTgcQPXFHORgYR-67CiDRoCHtoQAvD_BwE" rel="nofollow - one . For clarity, the default picture shows tabs. I didn't get any. Instead, I had just bolts which you'll see if you click on one of the terminal zoom-ins. Those bolts back all the way out.

I then bought some copper flat bar. Couldn't find any locally at a variety of electrical supply shops -- thought they would have stock bus bar. Anyway, a company like onlinemetals, speedy metals, etc. I went with 1/4" thick and about an inch wide. Then cut to length, bent a 90 degree, and then drilled holes. Short end to mount to the battery. I think I had to do a few different holes on the longer standing end to accommodate a variety of things hanging off (e.g., voltage monitor, charger and loads etc.). Maybe something like this could work for you.

Posted By: 32mike
Date Posted: 05 October 2025 at 00:45

Try looking at Victron AGM’s. I swapped out my factory Q batteries for the Victron 165ah AGM’s and it was an exact fit with the same terminals for the factory joining bars. Didn’t have to modify anything. I bought them from a local supply house that just had them shipped from the Victron warehouse wherever that was - Peterson Marine IIRC, but they were listed at other shops as well online.

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Mike
S/V Dulces Sueños
458 #087
Tampa, FL