Litime 2 PAK 12V 100Ah TM LiFePO4 Batterij, LiFePO4 Lithium-accu met Cryoprotectie, 4000-15000 Cycli, Diepe Cyclus LiFePO4 Batterij Geschikt voor Trolling Motoren Boten Thuis Energie Opslagsystemen

Good battery for the price

Den Verkäufer kann ich empfehlen. 1. war die Lieferung sehr schnell 2. Es gab ein kleines Problem bezüglich der Definition im Text für die MwSt. Erstattung wg. PV Anlagen Nutzung. Dieses Missverständnis wurde sehr schnell und unkompliziert gelöst. Auch der Lifepo4 Akku entspricht für den günstigen Preis den Erwartungen. Erste Messungen ergaben, dass die Grundwerte in Ordnung sind. Den Verkäufer und die Batterie kann ich empfehlen.

It's becoming a well known fact that the Li Time brand lifep04 batteries are the most cost effective, efficient and quality batteries available on the matket today.I have watched countless reviews in which these batteries were torn apart and inspected internally, tortured, and thoroughly tested for capacity and performance and never once have I seen a fail in any way. This is why I decided to purchase a Li time brand lifep04 battery.I am a licensed amateur radio operator and electronics technician, and purchased this battery for backup power in my shack in case of outages/emergencies, and so far it has exceeded my expectations in every way. It's way better than my old AGM batteries.I've been in contact with the Li Time support several times to ask them questions, and they replied with very prompt and informative answers every time. They offer excellent timely technical support, and are super courteous and personable.I can't recommend Li Time enough. I will definitely recommend these batteries to any other amateur radio operator out there looking for POTA or shack backup, this would be a massive POTA battery, weighing only 19lbs, and offering 100Ah!BTW, I'm a real person, not a paid for reviewer or some kind of fake bot thingie, lol. You can trust my comments to be based on my real life experience. 73 !

Ich konnte die Batterie leider nicht einsetzen. Die Bauhöhe war zu hoch. Wollte Gewichts-Technik- und Langlebigkeitsvorteil gegenüber AGM Batterie nutzen. Schade.

The batteries are great, reasonably priced and shipment is fast. Nothing bad to say.

I replaced two 6 volt lead acid batteries with four of these batteries, wired together in parallel to power the 12-volt system in my 13-foot trailer, including a new 60 watt fridge in. We enjoy remote camping for a week at a time, and need to be able to keep the fridge running while still being free to unhook and go exploring with our 4WD vehicle, without leave all our equipment out, unlocked charging (you know, solar panels, etc.) while we are gone. I have tested these batteries and find that they will last about 6 days before they are discharged to the point that they turn themselves off. (They have internal protection so they won't overcharge or overdischarge and get damaged.)The company has representatives who respond to questions within 1-2 days via email and I have been very happy with their service. When wiring four batteries, it is important that they stay in balance. To do that, I wired all the positives to a positive busbar, and all the negative wires to a negative busbar, using identical length wires (instead of to each other.) (see photo) This keeps them in balance with each other during charging and discharging. (You can also wire them in series in order to increase the voltage, of course, but I needed to stay with my 12-volt system and just increase the battery capacity, so I wired them in parallel.)My only issue is that LiTime's wiring diagram for wiring in parallel does not seem to be correct. They show wiring with a busbar and ALSO wires between each battery which is definitely not necessary and probably also defeats the purpose of using the busbars. When I asked them about it, they stood by their diagram, but their reason made no sense to me. They said the batteries also have to be connected to each other. But they ARE connected to each other via the busbars! I checked with an electrician who said he couldn't see why the extra wires would be needed, but didn't want to contradict the company's instructions. I can't even imagine how crowded the wires would have been if I had used twice the number of wires, LOL! The system is working beautifully by wiring just to busbars.The batteries fit in a standard group 31 battery box and weigh half the amount of a lead acid battery, so I can handle them easily by myself (69 y/o 100 pound female). (I could never begin to lift a lead acid battery by myself.)Changing from lead acid to LiFePO4 batteries is a steep learning curve! We tried to get the help of an autoelectric business, but they said they didn't have any experience with Lithium batteries. You'll have better luck at an RV service place, or study youtube instructional videos. But there are numerous advantages! The LiFePO4 batteries charge much faster, last a lot longer with each discharge cycle, have a much longer life overall, and are half the weight of lead acid batteries!Here is the learning curve part: If you discharge Lead acid batteries past 50 percent of their capacity, you damage them; whereas you can discharge the LiFePO4 batteries down to 20 percent and still maintain their long life. The trick is figuring out when they are getting close to 20-25 percent of their capacity. LiFePO4 batteries have a very flat charge/discharge curve. They stay at 13 volts from 100% (at rest not charging) down to 25% capacity, then drop precipitously. If the voltage reads 12.8, they are almost dead and need to be charged immediately! You need a multimeter to check the capacity, which is read in 10ths and 100ths of a volt, because the change is very tiny until the end. (see page from LiTime manual.) It's important to know to check the voltage with loads removed (i.e. fridge and lights turned off in my case). Also, the voltage drops on the way to the load (i.e. the fridge wiring), so the fridge reads a lower voltage than that measured at the battery. You will have to get used to what your fridge (or other device) says the voltage is, versus what the actual voltage is at the batteries by using some kind of voltage meter. I have been able to develop a feel for the actual voltage vs the fridge reading by checking and rechecking over time. As I say, it is a learning curve.While running, by the way, the fridge says the battery is at 12.4 or 12.8 volts usually. That is normal. The battery capacity is measured at rest. So I just turn off the fridge for a moment to see what it is measuring at rest. Then I compare that reading with what the voltage is at the battery itself. When the fridge says 13.0, for example, the multimeter at the battery says 13.26. If the fridge gives me 12.8 volts at rest, I know it's time to recharge! You'll need to do the testing to know the parameters for your own system to be sure.