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How long does it take to charge 12V 9Ah battery?
Re: charging 12v 9ah battery
Usually takes 3-4 hrs depending on battery. A trickle charger could take 12-16 hrs.
What does 12V 9Ah battery mean?
Amp-hours is a measure of the battery’s capacity, and more is better. The 9Ah battery can supply, for example, 1A for 9 hours while the 8.5Ah one can only supply 1A for 8.5 hours. The important thing is to match the voltage of the battery, which in this case is the same at 12V.
How many amps is a 12V 9Ah battery?
| Manufacturer: | B.B. Battery© |
|---|---|
| Max Charge Current: | 2,4 A |
| Nominal voltage: | 12 V |
| Capacity: | 9 AH |
| Terminal: | T2 Faston 250 (6,3 mm) |
How do you know when a 12V battery is fully charged?
Check the voltage of your battery using the voltmeter to help determine your next course of action. 12.6V volts or above – Your battery is healthy and fully charged.
Can you overcharge a 12-volt battery?
A 12V lead-acid battery will not be damaged by overcharge if the voltage is kept low enough to avoid electrolysis, and the charging current is kept below 0.2C (5 times less than the Ah capacity). Some types of lead-acid battery can handle higher voltage that others.
How can we charge 9 volt battery?
Similarly, you can charge a 9V battery with a 12V charger, and we show it in more detail below with Lithium-ion and NiMH batteries . The 9V li-ion battery is made of two 3.6V cells lending it a nominal voltage of 8.4. To safely recharge it you need a voltage source of 8.4V.
How many amps do I need to charge a 12-volt battery?
Most battery manufacturers recommend sizing the charger at about 25% of the battery capacity (ah = amp hour capacity). Thus, a 100 ah 12 volt battery would take about a 25 amp 12 volt charger (or less). Larger chargers may be used to decrease charge time, but may decrease battery life.
At what voltage should you charge a 12V battery?
The typical charging voltage is between 2.15 volts per cell (12.9 volts for a 12V 6 cell battery) and 2.35 volts per cell (14.1 volts for a 12V 6 cell battery). These voltages are appropriate to apply to a fully charged battery without overcharging or damage.
How many amps do I need to charge a 12 volt 7Ah battery?
In order to recharge 12V 7Ah completely in 6 hours, one needs a charging current of ~1.2 Amps, with a charging voltage of little less than 15 volts, requiring at least 18-20 charging watts.
How many watts is a 12V 9Ah battery?
Rated at 12V 9Ah (34 Watt per cell), its characteristics are small volume, light weight and high discharge efficiency.
How many watts is 9Ah?
| Amp-Hours (Wh) | Watt-Hours (at 120V): | Watt-Hours (at 220V): |
|---|---|---|
| 1 amp hour to watt hours: | 120 Wh | 220 Wh |
| 2 amp hours to watt hours: | 240 Wh | 440 Wh |
| 5 amp hours to watt hours: | 600 Wh | 1100 Wh |
| 10 amp hours to watt hours: | 1200 Wh | 2200 Wh |
What is the difference between 7Ah and 9Ah battery?
As the dimensions of the 12 Volt 7Ah battery and the 12 Volt 9Ah battery are exactly the same, they are interchangeable. Amp-Hours basically show how much energy a battery holds. As long as the battery you want to replace has the same voltage and dimensions it is okay to substitute it with a different Ah replacement.
Can I use 9Ah battery instead of 10Ah?
Re: running 10Ah system with 9Ah battery
“Ah”AmpHour, is a capacity measure, your controller uses ” A ” amps. So you have a 9ah battery with a 10 amp controller.. this is ok.
How long does a 12V 7Ah battery take to charge?
Since charge controllers and solar panels are not ideal (charge controller ~85-90% energy efficiency, solar panel 50-60% efficiency, this also means that one needs at least 35-40W solar panels in order to recharge a 12V 7Ah battery in 6 hours.
How many watts is a 12V 9Ah battery?
Rated at 12V 9Ah (34 Watt per cell), its characteristics are small volume, light weight and high discharge efficiency.
Can I replace a 12V 7Ah battery with a 12V 9Ah battery?
As the dimensions of the 12 Volt 7Ah battery and the 12 Volt 9Ah battery are exactly the same, they are interchangeable. Amp-Hours basically show how much energy a battery holds. As long as the battery you want to replace has the same voltage and dimensions it is okay to substitute it with a different Ah replacement.
Charging 12v 9ah lead acid battery – Electrical Engineering Stack Exchange
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- Summary of article content: Articles about Charging 12v 9ah lead acid battery – Electrical Engineering Stack Exchange The recommended charging current is between 10 and 30 percent of the rated capacity. So a 9Ah battery should be charged at about 2.5A, or lower. …
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charging 12v 9ah battery
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batteries – 9.5 ah replaced with a 8ah battery? – Electrical Engineering Stack Exchange
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12V 9Ah Battery, Sealed Lead Acid battery (AGM), B.B. Battery HR9-12, 151x65x94 mm (LxWxH), Terminal T2 Faston 250 (6,3 mm)
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Which serie for which applications
This 12V 9AH battery replaces
Battery charger SH-3110 Staudte Hirsch 12V 15 A
10 x Adapter T2 Faston 250 (63 mm) on T1 Faston 187 (475 mm)
Varta Industrial 10 pieces Micro AAA Battery Alkaline 4003 LR03
Error 403 (Forbidden)
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- Summary of article content: Articles about Error 403 (Forbidden) The proper way to charge a lead-ac battery is to impress a current equal to 25% of it’s amp-hour rating until the voltage stops rising. Do not exceed 14.2 … …
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12V 9Ah Battery, Sealed Lead Acid battery (AGM), B.B. Battery HRL9-12, 151x65x94 mm (LxWxH), Terminal T2 Faston 250 (6,3 mm)
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- Summary of article content: Articles about 12V 9Ah Battery, Sealed Lead Acid battery (AGM), B.B. Battery HRL9-12, 151x65x94 mm (LxWxH), Terminal T2 Faston 250 (6,3 mm) Small starter batteries (Re-on lawnmower, Generators, Startbooster). Rechargeable: Yes. Max Charge Current: 2,4 A. Nominal voltage: 12 V. Capacity: 9 AH. …
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- Table of Contents:
Which serie for which applications
This 12V 9AH battery replaces
Battery charger SH-3110 Staudte Hirsch 12V 15 A
10 x Adapter T2 Faston 250 (63 mm) on T1 Faston 187 (475 mm)
Varta Industrial 10 pieces Micro AAA Battery Alkaline 4003 LR03
Which charger to charge a 12v 9aH motorcycle battery ? — Digital Spy
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Can I charge 12V 9Ah battery? – MullOverThing
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- Summary of article content: Articles about Can I charge 12V 9Ah battery? – MullOverThing 2 How do you charge a dead 12V lead ac battery? 3 How long does it take to charge a 12 volt 7Ah battery? 4 What kind of Charger do I need … …
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Complete Guide On How To Charge A Lead Acid Battery – Power Sonic
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BATTERY CHARGING TECHNIQUES
BATTERY CHARGING CHARACTERISTICS
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CONSTANT CURRENT CHARGING
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OVERCHARGING A LEAD ACID BATTERY
UNDERCHARGING A LEAD ACID BATTERY
LEAD ACID BATTERY CYCLE CHARGING
LEAD ACID BATTERY STANDBY CHARGING
TWO STEP CONSTANT VOLTAGE CHARGING
CHARGING 2 OR MORE BATTERIES IN SERIES
CHARGING BATTERIES IN PARALLEL
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Charging 12v 9ah lead acid battery
\$\begingroup\$
How should I start with this?
First you need to set the desired voltage and current limit. To charge a 12-volt lead acid battery, which has 6 cells in series, you need to set a voltage limit of 2.15-2.4V per each cell. So if it has got six of these in series you need to set the charging voltage limit to 12.9-14.4V.
The recommended charging current is between 10 and 30 percent of the rated capacity. So a 9Ah battery should be charged at about 2.5A, or lower. Once the battery is fully charged the current drops to a few percent of the rated Ah, which indicates the battery is charged.
how much do I loose if I try to charge it from 12v?
Anything above 2.15V/cell will charge a lead acid battery. This means below 2.15V/cell no charging will occur.
is there a chip that can regulate the exponential charging process?
I don’t know.
charging 12v 9ah battery
So I answered my own question with some research on line. It all has to do with the amp hours. These chargers are meant for a car battery which are approx. 45 Amp hr. You can do it, but there is a possibility of overcharging. If I have a 1 Amp charger it would charge at a rate of 1 amp/hour. So a 9Ah battery completely dead would take 9 hours if charged with a 1 amp charger. A 3Amp charger would take only 2 hours.I believe the slower you charge the better it is for the battery. If someone else could chime in that would be great thanks. Found a good explanation for dummies here.
Electrical Engineering Stack Exchange
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Closed. This question is This question is off-topic . It is not currently accepting answers. Questions on the use of electronic devices are off-topic as this site is intended specifically for questions on electronics design. Closed 7 years ago. Improve this question
I’m trying to replace two Data Safe NPX-35, 12V, 8.5Ah SLA batteries. When I called support to figure out what to order (before pulling the actual batteries out) they said that any 12V 9Ah SLA would work…
So, should I go with the 12V 9Ah or just get the exact 12V 8.5Ah SLA?
Thanks for your help!
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