how many of these would i need for a 9000w solar kit using a consistent 2000w pull?

Assuming you intend to use an Inverter to convert 12V DC current provided by the batteries into 115V AC current, a 2000 Watt load would equate to about 16.7 Amps at 115v; this is roughly equal to 166 DC amps. To even pull that much current, you would likely need 6 to 8 of these batteries, at the bare minimum. Each hour that you plan on putting a full 2000 watt load on the batteries will require 166 amps; to preserve the longevity of your batteries, you should really only use about half of their rated capacity every cycle; so around 50 AH; so to run a load that large for ONE hour, you would need three of these batteries. Multiply three by X, where X is the number of hours you need to run the load for; that is the base number of these batteries you will need. You should also consider the cabling you will require to hook these batteries up, which for a load that large must be either 1/0 or 3/0 AWG. For such a large load, you would probably do better to buy some large 250 - 300+ amp hour flooded lead acid batteries in a quantity that would be appropriate.

How long would 100 watt Harbor Freight solar system take to charge this battery or two 100 Watts hook together?

You have to change the ah ( amp hours ) to know how long it would take. Battery 12 volt × 100 ah = 1200 watts ÷ 100 watts = 12hours. 1200w ÷ 200w = 6 hours. Everything depends on the battery that is so exhausted and the sun at that time. Todo depende de la bateria, que tan agotada esté y del sol en ese momento.

What is the recommended amperage to charge this battery? I have the minkota mk 210. Is 5 amps enough to charge this battery overnight. 8hrs?

up to 30 amps with a 12v agm charger . 50% DoD is 50 amp hours. Chargingin 50 Amp hours with 5 amps would take 13 hours. 10 amps 6.5 hours. Ah of battery needing charged/ amps of charger = x times 1.3= time

Have case holder designed to fit group 24- and 27-size batteries. What class size battery is this?

This is a Group 27 form factor.

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BUILT TO ENDURE - Valve-regulated design resists vibration, shock, and heat for reliable performance in any environment.
MOUNT IT YOUR WAY - Versatile installation options including upside-down mounting for flexible setups.
ZERO HASSLE ALL POWER - Maintenance-free AGM technology means no watering or upkeep—just plug and play.
TRUSTED AMERICAN QUALITY - UL Listed and backed by dedicated U.S.-based customer support for peace of mind.
POWER THAT SCALES WITH YOU - Wire in series or parallel to build 12V to 60V battery banks tailored to your energy needs.

The UPG UB121000 is a 12V 100Ah sealed lead acid deep cycle battery featuring advanced AGM technology for maintenance-free, durable, and versatile power. UL listed and designed for flexible mounting and scalable battery bank configurations, it delivers reliable energy for solar, wind, and critical applications with robust vibration and heat resistance.

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Manufacturer	UPG
Brand	UPG
Model	UB121000 45978
Item Weight	60 pounds
Product Dimensions	12.17 x 6.61 x 9.16 inches
Item model number	UB121000
Batteries	1 12V batteries required.
Is Discontinued By Manufacturer	No
Manufacturer Part Number	UB121000
Lift Type	12v
Amperage	100 Amps
Voltage	12 Volts

UPGUniversal Power Group UB121000 12V 100Ah Solar Wind AGM SLA DEEP Cycle VRLA Battery 12V 24V 48V

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