24v Battery Charger

24v Battery Charger
What is better 12 V or 24 V charger? for a 150Ah Battery. Power input: 220V, 50 Hz.?

I am looking to make a back up power unit for my house (in case of power supply failure) to run an electrical load of about 400 Watts (220V, 50 Hz.). Power input to charger is the same: 220V / 50 Hz.

Plan to buy a 150Ah Lead Acid Battery and hook it up with charger and inverter.
What Charger is better 12V/24V? Does it affect/depend upon the battery type?
How long do you think the supply would last?

Thanks for your help in advance.

It depends on the type of DC to AC convertor. If its input is designed for 12 volts DC,you need a 12 volts battery with 150AH or higher AH rate. Then you need a 12 volts battery charger output at least 1.5 amperes (10% of current rate) to charge the battery up to fully charged in 16 hours.
How long the supply would last? It depends on how good and how effiency the DC to AC convertor that you have. Some poor cheap design waste a lot of electricity and turn into heat.
Therefore,I estimate you might have 2 to 4 hours to support an
output of 220 volts AC at 400 watts load. Do a test load or read its specification.
NEVER USE A 24 CHARGER TO CHARGE A 12 BATTERY,IT SHALL EXPLODE!!!!

NOCO Genius® | Wicked Smart™

Schumacher CR-2 Charge 'n Ride 1.5 Amp 24 Volt Universal Battery Charger for Ride-On Toys
Schumacher CR-2 Charge ‘n Ride 1.5 Amp 24 Volt Universal Battery Charger for Ride-On Toys
$26.86
Schumacher’s CR2 Charge ‘n Ride is a universal 1.5 ampere automatic charger for battery powered ride-on toys. This charger is compatible with most 24 Volt Power Wheels, Razor, and Schumacher batteries. With the 1.5 ampere Charge ‘n Ride, you can charge 3x faster and ride longer….
Schumacher SE-82-6 Dual-Rate 2/6 Amp Manual Battery Charger
Schumacher SE-82-6 Dual-Rate 2/6 Amp Manual Battery Charger
$30.00
Schumacher SE-3000 1.5-200 Amp Manual Fleet Battery Charger
Schumacher SE-3000 1.5-200 Amp Manual Fleet Battery Charger
$219.99
This manual fleet battery charger is heavy-duty and is made exclusively for fleet and industrial use. It has a capacity to charge 6, 12, 18 and 24-volt batteries so there is no need to charge 18 and 24-volt batteries separately. Full power engine start is available in each volt range and its 200-amps help engines for emergency starting under severe conditions. It has an 80-amp rate for 6-volt batt…
NOCO Genius G7200 12V/24V 7.2A UltraSafe Smart Battery Charger
NOCO Genius G7200 12V/24V 7.2A UltraSafe Smart Battery Charger

NOCO Genius Smart Battery Chargers are some of the safest and most advanced on the market. One of our best, the G7200 7.2A is designed to charge 12-volt and 24-volt lead-acid and lithium-ion batteries up to 230Ah. It can also effectively maintain automotive, marine, RV, lawn & garden and deep-cycle batteries. It charges 2x faster than ordinary chargers, can repair damaged batteries, power DC devic…

Battery Tender 022-0158-1 Waterproof 24 Volt Power Tender Plus Battery Charger
Battery Tender 022-0158-1 Waterproof 24 Volt Power Tender Plus Battery Charger
$71.50
Battery Tender 24 Volt Power Tender Plus Battery Charger is a portable power tender which works at 2.5 ampere, constant current recharge and maintenance charger. It is fully potted therefore vibration resistant and waterproof. A mounting flange with mounting holes allow for this unit to be mounted on or in the vehicle. 4 stage charging allows all batteries to be fully recharged after use. Short ci…
24 Volt / 5 Amp - Three Stage - SLA Battery Charger and Maintainer - Fan Cooled - Regulated - For Use with AGM Batteries - 3-Pin XLR Connector - UPG 24BC5000TF-1
24 Volt / 5 Amp – Three Stage – SLA Battery Charger and Maintainer – Fan Cooled – Regulated – For Use with AGM Batteries – 3-Pin XLR Connector – UPG 24BC5000TF-1
$47.14
Brand Universal Power Group – Part No. 71704 – Connection 3-Pin XLR – Height 2.3 in. – Length 9.1 in. – Width 7.6 in. – Input Voltage 120 Volt – OEM 24BC5000TF-1 – Regulated Yes – Type Three Stage – Warranty 1 Year – Use With 24V Batteries -…
UpBright® 24V AC/DC Adapter For Electric Item No: 148831 Charger Scooter 24 VOLT DC24V Dual 12V Batteries Pulse Electric Performance Charge Power Supply Battery Charger (w/ Barrel Tip.)
UpBright® 24V AC/DC Adapter For Electric Item No: 148831 Charger Scooter 24 VOLT DC24V Dual 12V Batteries Pulse Electric Performance Charge Power Supply Battery Charger (w/ Barrel Tip.)
$24.99
UpBright® NEW Global 24V AC / DC Adapter For Electric Item No: 148831 Charger Scooter 24 VOLT DC24V Dual 12V Batteries Pulse Electric Performance Charge Power Supply Cord Cable Battery Charger Mains PSU (with Barrel Round Plug Tip.) CECCCROHS 100-240…
LotFancy® 24V 1.5A 1500mA Electric Bike Motor Scooter Battery Charger Power Supply Adapter For LASHOUT Electric Bike
LotFancy® 24V 1.5A 1500mA Electric Bike Motor Scooter Battery Charger Power Supply Adapter For LASHOUT Electric Bike
$13.98
LotFancy Scooter battery charger 24V 1.5A 3 Pin XLR (male)
Input: 110-120 VAC, 50/60Hz, 1.5A
Output: 24 VDC, 1.5A (1500mA)
Short Circuit Protection which fits most electric scooter
LED Display Green: Charged OK, Red: Charging

Package include 1X Scooter charger…

EPtech (10 Ft Long) 24V AC / DC Adapter For WORX WA3737 Lead Acid Lawn Mower Battery Charger Power Supply Cord
EPtech (10 Ft Long) 24V AC / DC Adapter For WORX WA3737 Lead Acid Lawn Mower Battery Charger Power Supply Cord
$27.38
EPtech® Platinum Quality Features: * Overload Protection with High Quality Wires * Over-charge/discharge protection * Overheating Protection with Smart Chip * Anti-Interference Feature with better Isolation Materials * Short-circuit protection * Fully compatible with the original laptops * Tested with strict quality control standards Buy with confidence! * 24 Month Warranty * Ship t…