₦airaland Forum

chris81964:
Do you really have the inverter wrapped in plastic?

Dtarmon:
How much does this cost sir?

feflo:
Tutorial on How Many Batteries & Why

This question comes up a lot so I thought I would take a couple of minutes to explain How and Why.

The how is really a simple formula. The first step and most crucial is to determine how many watt hours you will need in a 24 hour period. You then multiply that number by 1.5 which is a fudge factor to account for charge/discharge efficiency, power factor, and inverter efficiency. If no inverter is involved then use 1.3. This will give you your adjusted watt hours per day. So for example let’s say you will use 3000 or 3 Kwh per day. 1.5 x 3000 wh = 4500 or 4.5 Kwh per day.

The second step is to determine how many days of reserve capacity are required. The minimum is 2.5 days and up to 14 days. Then multiply this by 2 (for 50% depth of discharge as you never ever want to discharge more than 50%). So let’s select the minimum of 2.5 days. 2.5 days x 2 = 5 days.

Third step is to take the number of days determined from step two, and multiply by the adjusted daily watt hour usage. So in this example 4500 wh x 5 = 22,500 wh or 22.5 Kwh.

The last step is to divide the watt hour figure in step three by the battery system voltage. So now we must decide on a battery voltage of 12v, 24v, 36v, 48v, 60v and so on with multiples of 12 volts. For consumer grade applications the highest voltage (limited by equipment available to the public) is around 48 to 60 volts. Commercial applications can go as high as 500 volts and higher with special exemptions by limiting access to only qualified personnel. The voltage you choose is restricted mainly by the charge controller current capacity vs the solar panel wattage. Basically you want to use as high of voltage as you can afford to minimize power losses on the wring, and to keep the wiring as small as possible to minimize cost. For example the largest charge controller current available today to consumers is 80 amps. These controllers can be used on 12, 24, 36, and 48 volt systems. So a typical MPPT charge controller of 80 amps will have solar panel wattage limitations. For example at:

* 12 Volts max panel wattage = 1000 watts
* 24 Volts = 2000 watts
* 36 Volts = 3000 watts
* 48 volts = 4000 watts

Culled from solarpaneltalk.com

turok:
How much will it cost me for something like dis

feflo:
Some features of the NSB 100 FT batteries as culled from their website.( http://www.northstarbattery.com/batteries/nsbsilver/index.php)

The NSB Silver Battery® is a premium, high density designed to offer ten to fifteen years of trouble free service in standby emergency power (float) applications. They are best suited to deliver high power and cyclic capability in semi stable grid applications.

High energy density allows for maximum backup times, minimizes the battery footprint and reduces floor loads. The Silver Battery has fast recharge times, a long cycle life and a shelf life of two years.

State-of-the-art construction and automated manufacturing ensure consistency and reliability, with operating temperatures of -40°C to +65°C.

Other features of the NSB Silver Battery® include:

Operates even at extreme temperatures of -40ºC to +65ºC
Advanced 3 stage terminal design to ensure leak-free operation
Female M8 brass terminals provide maximum performance
Non-halogenated, thermally sealed PPOI plastic casing and cover
Flame retardant (UL 94 VO) and LOI of at least 28%
Integral handles and front access terminals ensure ease of installation and maintenance
Approved as non-hazardous cargo for ground, sea, and air transport

electronic:
please
1. If the the 4 batteries are changed to new, what would be the new price.
2. How long would the charger take to charge the four batteries to full capacity
3. Is there a need for a charger separate from the inverter charger to boost charging? how much would it cost to add a battery charger

if you don't mind sir can i get a break down of the prices thanks a million boss.

turok:
But you didn't include the steps needed to connect the charger

turok:
So with the converted UPS. I don't need a charger?
then what is the maximum battery capacity?

chris81964:
Are they new? Can you email me the data sheets at info@atlanticwastepower.com

casig:
Truly, locating where to connect the two cables from the DC fan could be tricky. I don't really get what said here, especially where you said, "then locate the point of the other leg on the board of the UPS."

casig:
Are these batteries brand new?

FxDominion:
Getting it down to me in Abeokuta, what will total overall cost be, I need one for now.

FxDominion:
Pls Feflo, on what condition will I need 24 volts system to power my appliances rather than 12 volts or is it a matter of choice?

DUNKA:
does this battery come in 200ah?