How big a battery should I use for 57 amps

What size DC-DC charger do you need, and is bigger better?

My question is: What size DC-DC charger do I need? Should I be considering a 40 amp unit instead of the typical 20- to 25 amp charger? I know there''s a price difference, but is bigger better? ANSWER. The limitation of any 20A or 25A DC-DC system is the fact that the battery''s recharge rate is restricted to just 25 amps or less.

What Size Power Converter do I Need for my RV?

How to calculate the size of the RV power converter? Your converter''s needs basically come down to how many amps your 12-volt DC-powered devices will draw at about the same time. As far as battery charge goes, converters use only a small portion of amperage for this (about 3 to 5 amps), but you need to add it as well.

MARINE OUTBOARD MOTOR APPLICATION GUIDE

52 RC @ 125 AMPS 27M6 40, 1, DP27 140,, 40 AH @ 20 AH RATE DP31DT 140,, DC24 140, DC27 1140,, DC31DT 40, 1, 24M4 216 ... 141 - Replacement battery may be longer, taller and/or wider than O.E. Replacement of tray/hold-down or battery box may be required. 216 - Requires 2 batteries in parallel to meet OE specifications. ...

Car Battery Charge Times with ANY Amp Charger

A 40 amp charger can charge a 50% discharged small car battery (200-315 CCA or RC 40-60) in about 45 minutes, a mid-sized battery (315-550 CCA or RC 60-85) in 1 hour, or a large battery (550-1,000 CCA or RC 85-190) in 1.5 hours. Double the times if 100% discharged. Do not use this large of a charger for car batteries.

Solar Battery Size Calculator: What size battery do I need?

The size of the solar system installed (or to be installed) will usually be the primary dictator of the size range of the batteries which can be paired with it, followed by …

How to determine what amperage bus bar to buy

That would be bad. Imagine a wrench across the terminals. So if you put a 10 amp light across the terminals, it would draw 10 amps. Figure out your total expected load and size you wire and fuses to that. Wires sized ti load, fuses sized to wires. Big fuses near the battery where it all comes together, smaller fuses farther out.

What Amp Car Battery Charger Do I Need?

So the minimum car battery charger Amps you need is 70 * 10% = 7 Amps. Remember that a typical normal sized car has a capacity of around 50Ah. So for most people with normal sized cars, a charger with 5A charging is enough for you. Since 50Ah * 10% =5 Amps. Why is car battery charging Amps important?

How Many Cold Cranking Amps Do I Need?

You can always jump start your battery. It is also advisable to use a battery maintainer during the winter season and in times when you will be storing your vehicle. So, the question of how many cold cranking amps do I need depends on what your vehicle requires. Check your vehicle specifications thoroughly, and from there you can determine how ...

What Size Battery Do You Need?

Our solar battery storage calculator allows you to play around with different size batteries to see the effect each has on payback and savings. This is the best way to size a battery for …

Complete Guide for What Size Battery Isolator do I need?

To find out the KWH usage of the battery, you need to multiply the amp hour rating with your desired voltage system. Phase battery bank system. 225AH @ 12 volts: 3.3 KWH @ 100 % discharge: Two batteries ... and what size of battery isolator you should use. Before using a battery isolator, you need to know the capabilities of your alternator, as ...

Getting the Right Lawn Mower Battery Size (Follow This Guide)

Lawn Mower Battery Size Chart (An Overview of Different Batteries) ... Personally, I think you could save a few bucks and go for a standard lead acid battery if you have a home-use lawn mower. CCA Cold Cranking Amps. Without going into too much technical detail, CCA is the number of amps required to start your lawn mower engine. …

What amount of current should I use to charge a 12V car battery?

$begingroup$ Any good charger is not a trickle charger. 2 to 10 amp is nominal for a normal charge. $endgroup$ – Passerby. Commented Nov 11, 2017 at 8:20 ... The battery should handle this OK but the voltage will rise faster. Above ~13.8-14.4V (2.3-2.4V per cell) the battery will ''gas'' as the water breaks down into hydrogen and oxygen ...

Breaker size calculator

Breaker sizing calculator parameter: Choose the method: provide load (in kilowatts or watts) and current (in amps) If current selected: rated current of equipment and required safety factor (S.F) to be entered If load selected: For option: For DC, 1∅ AC and 3∅ AC. For DC circuits: voltage (in volts), power (in watts or kilowatts) and safety factor (S.F) (in …

Right Battery Cable Size Guide

Battery Cable Size Chart and Interpretation. A battery cable size chart is an invaluable tool. It outlines the recommended gauge size for various amperage loads and lengths. For example, a 10-foot cable carrying 50 amps might require a 10-gauge wire, while the same amperage over 20 feet might need an 8-gauge wire.

Solar Panel Size Calculator – Charge Your Battery In Desired Hours

1- Multiply the battery amp-hours (ah) by battery volts to convert the battery capacity into watt-hours (Wh). Let''s suppose you have a 12v 50ah battery. Battery capacity in Wh = 50 × 12 = 600wh. 2- Multiply the battery watt-hours by the battery depth of discharge limit. Lead-acid, AGM, and gel batteries come with a depth of discharge limit of ...

FAQs: Battery Jump Starters, All Your Questions Answered

The CCA rating of a car battery should be on the battery''s label. ... the jump starter will be rated in Amps. Say your battery''s rated at CCA 540. In this case, a jump starter rated at higher than 540A will be okay. A NOCO Genius GB40 will start most cars. Just double-check the battery''s CCA rating against the jump starter''s amperage ...

What Size Charge Controller For 400w Solar Panel?

Assuming a deep-cycle lead-acid battery with 50% Depth of Discharge, then the battery size that could be recharge in a day would be 266Ah. This doesn''t seem to make sense, as a 400 watt panel can generate just 10 amps of current, and 133Ah divided by 10 amps = 13.3 hours, minimum.

Battery Advice for Livescope

What size battery do you guys recommend to get a full 10-12 hour day out of it? ... (6lbs.) lithium battery and a 2 amp lithium charger. Used 10ga wire for everything and wired it all to a dedicated switch. Am running a Helix 10 mega G3N on same power. ... #16 02-17-2020, 08:57 PM. Originally Posted by tdt91.

How to Read a Battery Charger Amp Meter: A Clear and ...

Check the size and voltage of your old battery or charger to make sure the replacement is the correct size and voltage. ... For a fully charged battery, the amp meter should display a minimal reading, indicating that the charger is no longer delivering current to the battery. The exact reading may vary depending on the charger and battery ...

10 Things You Should Know Before Buying a Battery-Powered …

An amp-hour rating gives you an idea how long a battery can continuously output a set number of amps. A 5-amp-hour battery, for example, will discharge 5 amps continuously for one hour. If you run the yard tool at a higher speed or higher load that draws more than 5 amps, the battery will discharge faster.

Choosing the right battery

Battery Group Size. The group size is the length, width, and height of the battery. Most vehicles will allow for more than one group size, so check your owner''s manual to find which battery group sizes fit. ... Note that some batteries use hot cranking amps (HCA), cranking amps (CA), or marine cranking amps (MCA) numbers. HCA, CA, or MCA ...

Off-Grid Solar Battery Calculator

Calculate Your Energy Consumption. Before you can size your solar batteries, you need to know how much energy your system consumes. 1. Use our off …

Boost Your Car Audio: Add a Second Battery

Running time (hours) = 10 x battery capacity (in Amp hours) / load power (in Watts) If you have a 90 AH battery and 1,800 Watts RMS amplifier, the calculation looks like below: 10 x 90 / 1,800 = 0.5 h . ... What size second battery for car audio should I …

Sizing and Building a Battery Bank | GTIS Power and …

Our rule of thumb is to size your battery bank to have a usable capacity 3 times your daily watt-hour needs. See the Calculating Loads page for determining the daily watt-hours you need.

Updated 2021 ATV and UTV Battery Buying Guide-The 5 Best …

Amp Hour (AH): This is a measure of how many amps the battery can supply in an hour. The higher the amp hours, the more powerful the battery is in long-term use. It''s a better indicator than the cranking amps for sustained power. Don''t forget to also think about your specific ATV. Measure the battery compartment and look at the mounting system.

300 watt Solar Panel: Output (Amps, volts), & What Can It Run?

For a 300-watt solar panel, a 12v 150Ah lithium (LiFePO4) battery or a 300Ah lead-acid battery would be the best suit. To calculate the size of a battery bank I would suggest you consider the highest number of peak sun hours and multiply the number of peak sun hours by the rated wattage of your solar panel. For example

What Size Battery Do I Need For My Travel Trailer

Battery Size. When choosing a travel trailer, one of the things you''ll need to consider is the size of the battery you''ll need. The three most common battery sizes for travel trailers are group 24, group 27, and group 31. Here''s a quick guide to help you choose the right size battery for your travel trailer:

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