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Old 06-05-2024, 10:52 PM   #1
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THOR #29868
Sequence battery compartment?

Where are the batteries?

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Old 06-05-2024, 11:03 PM   #2
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Where have you looked?
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Old 06-05-2024, 11:23 PM   #3
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Model: Tellaro 20k
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THOR #27962
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Originally Posted by mikelawler View Post
Where are the batteries?
Were they stolen?!

Kidding. What year and model do you have? Presumably it’s a 200, 460, or 920 ah (+/-) lithium system correct? I know the 200 ah lithium is two batteries underneath in front of the axle.
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Old 06-06-2024, 04:19 PM   #4
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Model: 2022 Tellaro 20L
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Originally Posted by mikelawler View Post
Where are the batteries?
The batteries are under the coach- The Tellaros and Sequcence models have them just in front of the rear axle in boxes.
The chassis battery is under the driver's floor, underfoot. The 20L setup does not have any provision to charge the chassis battery when parked and/or plugged in- it will die in 5 days, so you need to use the jumper posts and use a trickle charger when parked. I added one to my e-start system inside, so when plugged in now, all my batteries get charged.

TMC wants you to disconnect both B- and B+ for winter storage. Uh huh.
Thor has about 10-20' of excess wire everywhere EXCEPT to the batteries- no slack at all. So to disconnect, you have to drop the batteries down from underneath. Super hard to do.

I moved mine up inside my 20L. Also to have fuses and buss bars underneath???

So if you blow a fuse- good luck finding it, and resetting. That is all up inside mine now and easy to reach/ reset/ disconnect, etc. Just a few wires underneath.

What floor plan do you have?
PM me for more info w/ email (don't share email on public posts)
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Old 06-10-2024, 01:14 AM   #5
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THOR #27962
Did you ever find the battery/batteries and did you resolve the problem, whatever it was?
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Old 06-10-2024, 11:59 PM   #6
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Thanks for the info. I would like to attach a cable so I can trickle charge. The 20L is stored under a canopy and doesn't get enough sun to keep the house batteries fully charged. But it sounds like a difficult task. Even the Promaster battery is not something that would try to R&R.
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Old Yesterday, 12:14 AM   #7
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Originally Posted by mikelawler View Post
Thanks for the info. I would like to attach a cable so I can trickle charge. The 20L is stored under a canopy and doesn't get enough sun to keep the house batteries fully charged. But it sounds like a difficult task. Even the Promaster battery is not something that would try to R&R.
Why not simply plug in to shore power? Your inverter/charger will keep the batteries on float. Trickle charger or shore power, either way requires electricity. Shore power is easier and doesn’t require an additional “attachment”.
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Old Yesterday, 12:52 AM   #8
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Originally Posted by MCP View Post
Why not simply plug in to shore power? Your inverter/charger will keep the batteries on float. Trickle charger or shore power, either way requires electricity. Shore power is easier and doesn’t require an additional “attachment”.
And allows the correct charger to be used. There's really no such thing as a LiFePO4 trickle charger.
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Old Yesterday, 01:56 AM   #9
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Originally Posted by Mark54 View Post
As I mentioned the Tellaro 20L will not charge the chassis battery when plugged in. There is no 'bi-directional charging' in the 20L. My 20AT had that via a BIM module underneath that would charge both battery systems, b/c they were both lead-acid based batteries.
But when Thor changed to Lithium/UHG system, they left that out. Dealers had no idea.My chassis battery was at 11.2V after 4 days, just sitting at home. I was dumbfounded and sought answers and got none from dealer. Nothing in the manual either.


The easiest thing for you to do is get a NOCO 2A clamp-on type trickle charger from Amazon, and connect to the jumper posts up front under the bonnet- super easy- flip up the B+ cover and attach B+ cable there and remove the protective sleeve off the ground post at the fron edge of the opneing and connect B- cable there- plug into any 120V outlet.

See attached pic-

If plugged into shoreline, use the left rear outlet on the 20L. I keep mine attached all winter and used between trips when parked at home until I rewired my entire RV and upgraded to 600Ah battery system.

I do that for winter storage since I can plug into shoreline in summer when batteries are in and have my internal 2A charger connected to my e-start solenoid which is now up inside the electrical compartment.

For you just easier to use jumper posts and 2A NOCO, which is a 'smart' charger that auto senses battery type and when and howm much to charge, and stop.

PM me for more details about the rewire process.
All good info but the OP is referring to charging the house batteries not the chassis battery.
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Old Yesterday, 02:01 AM   #10
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Originally Posted by 16ACE27 View Post
And allows the correct charger to be used. There's really no such thing as a LiFePO4 trickle charger.
Actually... this one is.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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Old Yesterday, 02:16 AM   #11
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THOR #30506
Quote:
Originally Posted by mikelawler View Post
Thanks for the info. I would like to attach a cable so I can trickle charge. The 20L is stored under a canopy and doesn't get enough sun to keep the house batteries fully charged. But it sounds like a difficult task. Even the Promaster battery is not something that would try to R&R.
OOPS- after all my exhaustive response... (deleted)

Just plug into shoreline for charging the house/coach batteries!

:-)
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Old Yesterday, 02:17 AM   #12
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Originally Posted by MCP View Post
All good info but the OP is referring to charging the house batteries not the chassis battery.
I hate getting old. I made a corrected post. Thanks!
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Old Yesterday, 02:26 AM   #13
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Quote:
Originally Posted by Mark54 View Post
That's a multi battery type trickle charger. By design, a lithium BMS will shut off charging when the battery is full.
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Old Yesterday, 02:27 AM   #14
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Originally Posted by 16ACE27 View Post
That's a multi battery type trickle charger. By design, a lithium BMS will shut off charging when the battery is full.
yes and yes!
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