Replacement Batteries For Tab 400 2021

RayJim

Trying to decide between these two batteries has anyone had any experience with either? I don't know why they have a $100 price difference.

$269 for one
MIGHTY MAX BATTERY 6V 230AH Dual Terminal SLA Replacement Battery Compatible with BCI Group GC2 Deep Cycle AGM Scrubber MAX4093450 - The Home Depot

$369 for one
Duracell Ultra | 225AH | 6V AGM | Golf Cart & Floor Scrubber Battery | Deep Cycle | Group Size GC2 - SLIGC6VAGM at Batteries Plus

pthomas745

Lets get this out of the way first:

For the 500-700 dollar price of these dual 6v batteries, you can get about 135 usable amp hours.

For this single LiTime 230 amp hour lithium battery, you can get more than 200 usable amp hours for only 519 dollars.

https://www.litime.com/products/12v-230ah-bluetooth-lithium-rv-battery

I'm not sure on the difference in price in the Duracell. I have noticed in the last year or so, the Duracell 12V Group 24 sized deep cycle battery still advertises itself as an "80 amp hour" battery, where in many instances, other Group 24 sized batteries are "shrinking", often less than 65 amp hours.  These are mostly the "auto store Marine/RV hybrid type batteries".  So, even though the Duracell Group 24 battery can be more expensive than a Group 24 100 amp hour battery, if owners are dead set on staying with the AGM, the Duracell seems like you get what you pay for, which is the proper amount of amp hours that "Group 24" deep batteries used to have.

Many owners in the Forums have also installed "VMAX Tank" dual 6V batteries, and they fall in between the two prices you mention in your posts at 289.  This is an Amazon link to them.

https://www.amazon.com/VMAX-V6-225-225Ah-Battery-Capacity/dp/B074JH65JM

Here are other Forum threads with recommendations with examples of other dual 6V AGM's owners have used, including the VMax.

https://www.google.com/search?q=vmax+dual+6v+site:tab-rv.vanillacommunity.com&client=firefox-b-1-d&hs=yvg9&sca_esv=8fbdbe968a7e09e0&sxsrf=AE3TifNTiHn-z5NFxwyMgluBUXDnAgPw3Q:1766418416255&ei=8GdJaZOzD_-MvMcPzs_RkAQ&ved=0ahUKEwiT6-axxdGRAxV_Bu8CHc5nFEIQ4dUDCBE&uact=5&oq=vmax+dual+6v+site:tab-rv.vanillacommunity.com&gs_lp=Egxnd3Mtd2l6LXNlcnAiLXZtYXggZHVhbCA2diBzaXRlOnRhYi1ydi52YW5pbGxhY29tbXVuaXR5LmNvbUisMVCWCljnKXABeACQAQCYATugAb8DqgEBObgBA8gBAPgBAZgCAKACAJgDAIgGAZIHAKAHlQOyBwC4BwDCBwDIBwCACAA&sclient=gws-wiz-serp

RayJim

Thank you for taking the time to respond my question and provide the associated links. I will make the change to lithium the next battery change out, but for now will stay with AGM's.

donmontalvo

Just gonna leave this here...

https://www.youtube.com/watch?v=KQUBYZ7jq8w

manyman297

Definitely stay away from AGM at this point. 5 years ago it made sense to keep using them but the price of lithium batteries has so drastically fallen that it just doesn’t make sense anymore. I have the LiTime batteries the past couple of seasons. The extra amp hours coupled with solar make these hard to beat for the price. 

RayJim

I considered using lithium, just don't feel comfortable with one of those batteries under my bed while I'm sleeping. 

AnOldUR

You may be confusing Lithium Phosphate and Lithium-Ion (LiFePO4 or LFP). We use LiFePO4's which are very safe. On the other hand, even AGM batteries can off gas under the right (wrong) situation. About the only justification for AGM is continuous extreme cold conditions, but even then a heated LiFePO4 might be a better alternative.

RayJim

They recommend not charging your batteries in a wooden box including LiFePro.