Maintenance free battery for 73 RD 350

[MRDRcycle]

My conventional yuasa (12n5.5a-3b) battery life crapped out recently. Does anyone have a good recommendation for a maintenance free alternative?

[RDFL]

https://www.ebay.com/itm/SigmasTek-ST5L-BS-Replacement-Battery-for-Cannondale-440CC-EX400-2000-2001/323431066214?hash=item4b4dfe6a66:g:GGcAAOSwhkRWcmpf is one option

[Tuck]

My BikeMaster TruGel, 2 years now has been flawless. 

[RDFL]

Was just looking at this gel after going to ebay for link to Sigma Tec. --- https://www.ebay.com/itm/Mighty-Max-YTX5L-BS-GEL-Battery-Replacement-for-Genuine-SigmasTek-ST5L-BS/132915667737?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3Dd3f7dec4ce0a4c3b8bcfd37d54422dac%26pid%3D100675%26rk%3D2%26rkt%3D15%26sd%3D323431066214%26itm%3D132915667737%26pmt%3D1%26noa%3D1%26pg%3D2380057&_trksid=p2380057.c100675.m4236&_trkparms=pageci%3A8ea0d0a8-189c-11ea-87c0-74dbd180c62a%7Cparentrq%3Ade4581a116e0ac3c6a9f425cffc92b3c%7Ciid%3A1 ---  I've had a Sigma for at least 4 or 5 years no problems, hardly discharges at all just sitting.

[SUPERTUNE]

I buy the agm's for a Yamaha Zuma 50.
Just pack some foam in the tray as they are a little skinnier.
About  $35. Have sold them for years.  I've had them last 5 years!!
Chuck

[pdxjim]

Yup. 

After wasting time and money on lithium's, I'm back on the basic AGMs.

About $30 from BatteriesPlus and way more forgiving than Li.  Keep it on a tender when you're off it for more than a few weeks and it'll last for many years.

[2t Fan]

Generally there is talk in the market that maintenance free batteries will not last on RD.s 

[m in sc]

not true. i had a sealed alarm battery last almost 8 yrs.

[Hawaii-Mike]

I like the Bikemaster AGM's.  Mr Super Deals on E-bay is a great seller.  Once my battery died prematurely and he helped me with the process of getting a replacement under warranty: https://www.ebay.com/usr/mrssuperdeals?_trksid=p2047675.l2559

[MRDRcycle]

Great! I think I'll try the AGM. The yuasa I have is 12v 5.5ah. I'm guessing the safest bet is to match this exactly.

[quocle603]

Basic alarm 5ah battery. Sealed Pb

[SUPERTUNE]

Great! I think I'll try the AGM. The yuasa I have is 12v 5.5ah. I'm guessing the safest bet is to match this exactly.

5ah is fine. Doesn't need to be 5.5
C

[MRDRcycle]

I found these Motoclassic batteries on Amazon. One is not quite 5Ah, but the size seems compatible. There is also a 6.5ah version, but am not sure if the amperage is going to be too high.

Moto Classic YTX4L 12V 4.5Ah Maintenance Free Sealed AGM 90CCA Battery w/ 30 Mo. Warranty Coverage  4.5 x 2.7 x 3.5 inches

Moto Classic YTX5L 12V 6.5Ah Sealed Maintenance Free AGM 125CCA Battery   4.5 x 2.8 x 4.3 inches


https://www.amazon.com/Moto-Classic-PowerSport-Batteries-YTX5L/dp/B07NBJ42RG/ref=sr_1_9_sspa?keywords=yuasa%2Bagm%2B5ah&qid=1575786072&s=automotive&sr=1-9-spons&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyS0ZWTVBVMEpBWEtYJmVuY3J5cHRlZElkPUEwOTc5MjkyM0pVUk9QWlFPNFpWVyZlbmNyeXB0ZWRBZElkPUEwNjA1Nzc5M0I5RzNBTFQwMTdDOSZ3aWRnZXROYW1lPXNwX2J0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1

[MRDRcycle]

http://www.motobattbatteries.com/motobatt-mb5-5u.html

I also found this one. Although it is 7ah, it says it's a direct replacement for my yuasa battery and that it will fit the RD350.

[Kawtriplefreak]

I am running a couple of Moto Batts. They are good batteries.