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Topic: lithium batteries- drop in  (Read 3908 times) previous topic - next topic

Re: lithium batteries- drop in

Reply #20 –
Our Victron is 600 AH, say 480 usable. I would like to add an additional 300 AH in the future, possibly 600 if the price comes down.

Re: lithium batteries- drop in

Reply #21 –
400 has served us well but 600 would have meant less monitoring and conservation for our 270.  We do not have a residential.

The built in heaters are a real plus.  My biggest worry initially was an accidental charge below freezing.  AM Solar has created a board that automatically shuts down charging at low temps.  Lessens the possibly forgotten solar kickin on a cold morning.

Re: lithium batteries- drop in

Reply #22 –
The Battleborn & Lifeblue batteries both monitor temperature and shut down the batteries if temp. is above or below their set point.
On my U320 the battery compartment is next to the Aquahot compartment, so if I need to I'll cut a vent through that bulkhead to allow the AH heat to warm the batteries.  But that issue is more a notation and probably not an issue for most people, certainly me.

Re: lithium batteries- drop in

Reply #23 –
Just got this from BattleBorn:
"The 10 year warrant is 8 year full replacement 2 year pro-rated."

This is in response about adding internal bluetooth monitoring to their batteries:
"We are working on new batteries, we are just not given any information until they are ready to be released, so I don't know the specifications as of now. "

Re: lithium batteries- drop in

Reply #24 –
Quote from: folivier –
The Battleborn & Lifeblue batteries both monitor temperature and shut down the batteries if temp. is above or below their set point.
On my U320 the battery compartment is next to the Aquahot compartment, so if I need to I'll cut a vent through that bulkhead to allow the AH heat to warm the batteries.  But that issue is more a notation and probably not an issue for most people, certainly me.

My lithium battery setup is where the washing machine used to reside in the head.  There is a AC outlet pointing down to it to help keep them cool, and of course the inside is heated if needed. Lost the washer, but don't think I would have used it much anyway. The PO did this thru AM solar so for me it was a non choice, but I could move it all to a bay, but don't see any  reason to do so. I like where it is. A lot of money went into it, and knowing it is where I can easily monitor it is reassuring.  There is room above in the other compartment for additional batteries if needed.

Re: lithium batteries- drop in

Reply #25 –
These guys are pretty long winded, but do a good job in explaining the difference in battery types and their advantages.
https://www.youtube.com/watch?v=PZ7HMRReZKY

Re: lithium batteries- drop in

Reply #26 –
Mine finally made it.. Been down with surgery but A friend and my son are helping me.. Hope to get them installed tonight and finished tomorrow.. I had to pull the battery shelf out and retro it as these are a bit bigger than 3ea 8d batteries ^.^d

Re: lithium batteries- drop in

Reply #27 –
Says to store at 30-50% SOC.  I leave our electric bikes stored at a similar SOC.

Re: lithium batteries- drop in

Reply #28 –
what is considered storage? what period of time? 1 month 3 months?

Re: lithium batteries- drop in

Reply #29 –
I am assuming whatever time that it is under no load and not charging.  I run our bikes down then put them away,

They charge quickly.  So overnight before a use?  Then leave it down when stored?

Opposite from lead acid anything?

Half charged would still be a lot of amphours in your case especially with no voltage drop visible?

Re: lithium batteries- drop in

Reply #30 –
Quote from: DavidS –
Mine finally made it.. Been down with surgery but A friend and my son are helping me.. Hope to get them installed tonight and finished tomorrow.. I had to pull the battery shelf out and retro it as these are a bit bigger than 3ea 8d batteries ^.^d

David, who's the manufacture of these lithiums?  I notice the life cycles and was surprised it was that low.  Am I missing something?
Their DOD is great as all lithiums are!  Thanks in advance for your help with those questions.

Re: lithium batteries- drop in

Reply #32 –
In removing the battery tray form the coach I had a piece of fiberglass the old batteries sat on.. when removed I found 2 holes through the floor and 2 holes in the ceiling of the compartment. Obviously for cooling... wondering if the upper holes come from the interior to help cool and heat the compartment? Never seen the holes before.. maybe someone added the fiberglass for the batteries to sit on after the fact and not OEM?

I will try and get a pic before we install the new batteries..

Re: lithium batteries- drop in

Reply #33 –
I was searching for the post comparing lifetime costs of the different batteries, and can't find it. Gel, AGM Lithium and wet.

Re: lithium batteries- drop in

Reply #34 –
Quote from: DavidS –
In removing the battery tray form the coach I had a piece of fiberglass the old batteries sat on.. when removed I found 2 holes through the floor and 2 holes in the ceiling of the compartment. Obviously for cooling... wondering if the upper holes come from the interior to help cool and heat the compartment? Never seen the holes before.. maybe someone added the fiberglass for the batteries to sit on after the fact and not OEM?

David, I have the same two holes over my batteries. They are attached to two 2 1/2 inch dryer vent type of tubing that runs over the tanks into the rear bulkhead. I image Foretravel put them there incase someone decided to put non sealed batteries in there. I will watch the temp of my lithiums, and if they seem to be getting too warm in the summer,  will put a couple of muffin fans in them,, to suck in cooler air.



Re: lithium batteries- drop in

Reply #35 –
Quote from: DavidS –
Mine finally made it.. Been down with surgery but A friend and my son are helping me.. Hope to get them installed tonight and finished tomorrow.. I had to pull the battery shelf out and retro it as these are a bit bigger than 3ea 8d batteries ^.^d
David,

That looks awesome. Would you mind posting the overall dimension of your built up battery? Also what do you plan to use for charging?

thanks
ken

Re: lithium batteries- drop in

Reply #36 –
Quote from: kenhat –
David,

That looks awesome. Would you mind posting the overall dimension of your built up battery? Also what do you plan to use for charging?

thanks
ken

I will get the measurements.. I have 1200w solar and victron 3000 inverter/ charger. installed one of these for the alternator

LiFePO4 Battery Isolation Manager - Battle Born Batteries

Everything is finally installed and charging.. will test in the next couple weeks

When my inverter blew up I planned on lithium so I built it to accommodate lithium from the get go. It is also set up for regular batteries or agm so it was a win win.

Batteries I bought are UL listed for those really worried about it..

Re: lithium batteries- drop in

Reply #38 –
Says they can take a charge at 1C.  Wow.  Maybe a separate charger?

Re: lithium batteries- drop in

Reply #39 –
Wow, that's 15KWH! That's an above-average amount of power, and fairly light weight. Will your BMS will be monitoring each cell?

I have cells just like these in my rig for the engine battery.

If you paid $1,800 x 3=$5,400, you paid too much. That said, you got new, 12 volt, maintenance-free batteries that will last 10+years and have many advantages. EV lithium batteries will soon be selling at $100/KWH, ($1,500 for your pack) since we are on the cusp of an EV revolution. This will be a great boon to RV'ers.

See: Nissan Leaf Battery G1 Module Lithium Ion 24 kWh 500 watt per module Lot of...

The Nissan is only suited for a 24 or 48 volt system. My house battery is 48 volts.