Batterie à décharge poussée à énergie renouvelable de 6 V pouvant être utilisée comme source de réserve d'énergie pour des panneaux solaires, lorsqu’elle est utilisée avec des onduleurs
Just a note that if you use these batteries for solar (great choice) you will need at least 100 watts per battery(min) of panel 5 amps. 2 batteries together for 12 volts will need minimum 200 watts of solar panel or you will never get them to charge fully. Ideally 400 watts for 2 batteries. The review a person wrote here probably had undersized solar panels to get the batteries to charge to 14.4 to 14.7 volts.
I got these batteries for my off the gid cottage. They work really well, I have 4 batteries. I noticed you need to add water every 3-4 months in order to keep a good charge.
Terrible batteries. Never could get them to hold a charge. Went to take them back and found out they only have 6 month warranty. Avoid these batteries.
I have had these batteries for 3 years and they have never held a charge. If I trickle charge them they get to 13.8 and then boil. The solar panels, which I bought them for have never been able to charge them past 13.4v. I suspect these were damaged and returned by a previous person since the store had two in stock and no other stores were carrying them. With a 6 month warranty long past, these are very expensive boat anchors.
R : The batteries can be placed in series but they should be matched - or purchased at the same time. One good battery in series with a bad battery will kill the good battery.
In addition, make sure the batteries are both fully charged before putting them in series. If one is charged and one is not there will be problems. In such a scenario, the total voltage will read somewhere between 6 and 12 volts. The battery charger will attempt to charge the two batteries putting a current through both of them. The charged battery will be overcharged causing damage.
Basically, the batteries should be the exact same then all will be good.
Regarding the minimum cable gauge, it depends on the current draw. You probably want a voltage drop of <5% - or 0.6v when in a 12v configuration. If drawing 10A, you want a cable with a maximum resistance of:
R = V / I
R = 0.6v / 10A
R = 0.06Ohm
Now it all depends on distance. Assuming a distance of 10m you would want a cable with a resistance rating of 0.006 Ohms / Meter - or less. (Total resistance divided by distance.) For this example, 10 gauge copper would suffice with a resistance of 0.00387 Ohm/m.
*Note: the distance is the distance travelled by the electricity - both going and return. So a battery connected to a device by a two conductor, 10m cable should be considered a distance of 20m - 10m there and 10m back.
*Note: the 10A example is only enough to light a 100w lightbulb. It's scary how big a conductor you need to transmit any real power at 12v. Save yourself some grief and just setup an inverter right beside the batteries. Then you can transmit the power at 110v using standard 14gauge wire.
R : To convert from the 6 hour rate to the 20 hour rate you must multiply 150 (6 hr rate) by 1.5764705 to get 236 AH @ 20hr rate. This should be a decent battery. This conversion is listed on several websites ie: http://gbindustrialbattery.com/Battery_Options/AH_Ratings.html
Q : 1st question...
Considering 2 x 6 v in series for RV house loads. RV also has 2 x 12 v start batteries in parallel, and isolator relay.
Is there a problem with the 2 banks being different voltages?
Thanks for your valued input!
JT
R : no problem , they are not different voltages, 2x6 volt series is 12 volts, 2x12 volts parallel is 12 volts. Andthey will work together for emerg start in RV
Q : would it be safe to wire 2 of theese in series and then wire them in parrelle with the eliminator 12 volt deep cycle battery
i have 3 100ah deep cycle elmiminator batterys and i want more ah and i was wondering if i could combine 2 6 volts to make 12 and then wire then to the rest of the batterys
R : This will work, but the 12v elmiminator is an AMG sealed battery and these are flooded batteries. Most battery charges will charge the 2 types differently. You will need to at water to the 6v but they will last longer then the 12v AMG battery with care
R : Most golf cart batteries are 6 v connected in series. 6 volt batteries give you the most amp/h. These will work pufect for your application. Just don't mix old batteries with new ones.
Q : Would 2 of these be good for a 12 volt set up in my travel trailer?
I want to replace my single 12 volt with 2- 6 volt deep cycles and these seemed like a good price just not sure if they are adequate?
R : I run my whole cottage of 4 of these batteries with a 50 watt solar panel(just enough for a weekend) they are very high amp/h batteries so they sould work we in your trailer
Q : Are these safe to use in confined spaces? I've enclosed my sump pump in an under-stair closet and would want to locate batteries & inverter there too.
R : This battery can be used in areas where sump-pumps and inverters are positioned; however, if there is risk of sparking or your setup is exposed to open flame, it is recommended that the area offer ventilation or the battery be positioned externally to avoid possible ignition.
Store the battery in a cool dry place (not next to a furnace or other heat source) and away from children and pets.
R : I don't recommend it. Adding different batteries, and different ages of batteries, can lead to problems. Older batteries don't charge the same way as the new ones, so you may find one set all charged up but the other set is flat.
R : Fuses are usually put to be whatever is the maximum power expected to be drawn (ie, inverter + any other loads not on the inverter), not maximum power that can be produced. Otherwise, the fuse will not protect if a short happens and the battery isn't at maximum capacity. Eg, you'll still have a fire.
Q : Who supplies your 6 volt batteries
I understand you sell batteries made by East Penn Manufacturing, but I am specifically looking for a Deka GC15 battery and was told you sell them under a motomaster number...
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