The 12V 100Ah deep cycle LiFePO4 battery is built with high-quality Grade A+ prismatic cells, delivering up to 105,86Ah of usable capacity and supports a lifespan of over 5000 cycles at 90% depth of discharge. Ideally suited for motorhomes, campervans, caravans, boats, gardens, or as an energy storage system for solar installations.
WattCycle 12V 100Ah deep cycle LiFePO4 battery with compact design (L260 x W168 x H209 mm) and IP65 water-and dustproof is equipped with Top EV grade A+ LiFePO4 cells and 100A safe BMS protection, providing excellent performance, unbeatable safety, and massive 1280W output power and 1280Wh energy for your indoor- and outdoor applications.
WattCycle 12V 100Ah deep cycle LiFePO4 battery uses EV A+ grade battery cells, providing 5000+ cycles @100% DOD, 8000+ cycles @70% DOD, and 15000+ cycles @40% DOD, while lead-acid batteries can only last 300 - 500 cycles.
Theinternal metal structureis an industry innovation that ensures the stability of the battery's internal structure. Compared to other easily movable foam supports, the metal structure allows WattCycle batteries to maintain a sustainable power supply even in bumpy environments.
WattCycle 12V 100Ah lithium battery with advanced 100A BMS protects against extreme temperatures (high or low temperature). You can use the battery at -20℃-70℃, and charge it at 0℃-50℃.
All WattCycle batteries have low-temperature cut-off protection. When the temperature drops below 0℃, the low-temperature cut-off protection activates, preventing the battery from charging and protecting the battery cells. When the temperature is below 5℃, the battery resumes charging automatically.
WattCycle 12V 100Ah deep cycle LiFePO4 battery with compact & lightweight design (L260 x W168 x H209 mm, 10,55 kg) has a higher energy density (121,33 Wh/kg) than 12V 100Ah lead-acid batteries (27,40 Wh/kg), Your smartest choice for lead-acid replacement.
WattCycle 12V 100Ah deep cycle LiFePO4 battery supports max. 4P4S scalable configuration to a 20,48kWh power solution. The 16pcs 100Ah lithium batteries build a 48V 400Ah battery system, providing 400A max. continuous charge and discharge current and 20,48 kW output power.
WattCycle 12V lithium batteries with EV grade A+ cells and 100% safe BMS protection is a versatile powerhouse, perfect for a variety of applications. Whether integrated into a home solar power system, used in a motorhome, caravan, camper, powering a trolling motor in a boat or marine system, or supporting an off-grid setup, the battery ensures reliable, efficient energy storage.
| Battery Technology | LiFePO4 |
| Dimensions | L260 x W168 x H209 mm |
| Weight | 10,50 kg |
| Terminals | M8 Bolts |
| Casing Material | ABS |
| Waterproof Rating | IP65 |
| Self-heating | No |
| Hazard class | 9 |
| Warranty | 5 Years |
| Certifications | IEC, CE-EMC, CE-RoHS, CE-Battery, FCC-SDOC, PSE, METI, RCM, UN38.3, MSDS |
| Nominal Voltage | 12,8V |
| Nominal/Usable Capacity | 100Ah |
| Energy | 1280Wh |
| Cell Balancing | No, passive balancing |
| Monthly Self Discharge | ≤3%/Month |
| Series & Parallel Configurations | Max. 4 in Parallel, Max. 4 in Series |
| BMS | 100A |
| Max. Continuous Output Power | 1280W |
| Overall Over-Charge Detection Voltage | 14,4±0,2V |
| Overall Over-Discharge Detection Voltage | 10±0,2V |
| Standard Continuous Charge Current | 20A (0.2C) |
| Max. Continuous Charge/Discharge Current | 100A (1C) |
| Over-current Charge Protection | 130A±20A |
| Over-current Discharge Protection | 300A±50A |
| BMS High Temperature Cut-Off | Charge: 55℃±5℃ Discharge: 65℃±5℃ |
| BMS Low Temperature Cut-Off | Charge: 0℃±5℃ Discharge: - 20℃±5℃ |
| High Temperature Recovery | Charge: 50℃±5℃ Discharge: 60℃±5℃ |
| Low Temperature Recovery | Charge: 2℃±5℃ Discharge: -15℃±5℃ |
| Charging Temperature | 0℃-55℃ |
| Discharging Temperature | -20℃-60℃ |
| Storage Temperature | 0℃-45℃ |
Our 12V 100Ah LiFePO4 batteries have a maximum charging current of 100A. However, we typically recommend charging them at 0.2C (20A) for optimal balance of speed, safety, and longevity.
Watt-Hours = Amp-Hours x Battery Voltage
100Ah x 12.8V = 1280Wh
Battery runtime is influenced by multiple factors, including battery capacity, connected load, and the battery’s condition. For example, a new battery performs better than a used one, as its capacity slightly decreases with repeated charge cycles. However, you can estimate runtime using a simple formula based on power consumption and battery capacity:
Runtime (hours) = Battery Capacity (Wh) / Total Device Power Consumption (W)
Example:
If you have a 12V 100Ah battery and connect a 50W lamp and a 50W speaker, the runtime will be:
1280Wh / (50W + 50W) = 12.8 hours
This straightforward formula helps estimate runtime under different loads. Always consider real-world factors like temperature and battery ageing for more accurate predictions.
To charge a 12V 100Ah battery from 100% depth of discharge in 4.5 peak sun hours, approximately ≥400 watts of solar panels and an MPPT charge controller are required.
Three 12V 100Ah batteries in parallel and a single 12V 300Ah battery provide the same total capacity (300Ah). However, using a single 300Ah battery offers key advantages:
When to Choose Three 100Ah Batteries:
Redundancy: If one battery fails, the other can still provide partial power.
Scalability: Easier to expand capacity incrementally (e.g., adding more batteries later).
Final Recommendation:
For most applications (e.g., solar storage, RVs, backup power), a single 300Ah battery is preferred for simplicity, reliability, and space efficiency. Use parallel setups only if redundancy or scalability is a critical priority.
Not recommended. WattCycle requires four rules for safely connecting batteries in series or parallel:
Why Mixing Different Batteries Is Risky:
Recommendation:
The primary difference lies in their physical size:
12V 100Ah battery dimensions: L260 x W168 x H209mm
Mini battery dimensions: L229 x W138 x H208mm
By connecting 4 parallel 12V 100Ah lithium batteries, you significantly increase your system’s total capacity, extending runtime. This configuration creates a 12V 400Ah battery system, delivering up to 5.12kWh of energy.
Runtime Calculation:
Runtime (hours) = Total Battery Capacity (Wh) / Total Device Power Consumption (W)
Example:
If you connect 4 parallel 12V 100Ah lithium batteries to a 50W lamp and a 50W speaker:
5.12kWh (5120Wh) / (50W + 50W) = 51.2 hours
This 12V 100Ah battery does not include Bluetooth functionality.
To monitor battery status and capacity, an external battery monitor is required.
Passive balancing is activated when the battery voltage exceeds 13.6 V and the voltage difference between cells reaches ≥ 30 mV.
The balancing current is relatively low, at approximately 50 mA + 20 mA, meaning the process works gradually to equalise the cells over time.
Yes, this is possible.
However, WattCycle recommends occasionally separating the batteries and charging them individually to 100% to maintain proper balance and performance.
Yes, the battery supports an operating temperature range of -20°C to 70°C.
At temperatures below -20°C, the battery will automatically stop discharging to protect itself.
Once the temperature rises above 5°C, the BMS protection is released, and normal operation resumes.
The Battery Everyone is Talking About
Customers praised this LiFePO4 battery for exceptional performance and value. Reviews highlight "light and powerful," with tested capacity exceeding 100Ah. Users report reliable operation in RVs, boats, and solar systems. One delivery complaint noted. Customers appreciate the lightweight design versus lead-acid alternatives and long runtime for various applications.
Got this WattLINK cable to connect my Ecoflow Delta 2 Max to an External 2.5 kw server rack battery and after a firmware update on the Delta 2 Max it works very well. There is a slight discrepency of charge rates (3-5% SOC difference), where the Ecoflow will charge before the external battery and the solar input reads 0 as if charging has stopped, but the server rack battery continues to charge (likely equalizing from the Ecoflow) and when it draws enough power from the D2M, the solar charging kicks back on again, maintaining the state of charge. I'll be posting a video on this awesome upgrade on my Youtube channel (http://www.youtube.com/@backtotheadk883) soon.
I bought this to upgrade from a 100ah lithium battery in my travel trailer. It more than tripled my capacity and easily fits in the factory camco double battery box with no modifications required. The price was great and I highly recommend this.
This is my second “dumb” 314Ah Mini. I was able to squeeze two of them into my 2016 Winnebago View 24G coach battery compartment with just a slight modification (removed 4 small sections of aluminum that make up the battery “box” and cut two small slits in the top in order to bend up the lip a bit). I use them to both feed the coach 12V system as well as to provide backup power to an EcoFlow Delta Pro that I use as storage/inverter/solar controller. These 3 units provide 11.6kW of storage in a compact and flexible arrangement. When boondocking I power my whole rig (30A) by connecting the shore power cable the Delta Pro and use its battery for the 110V system and the WattCycles for the 12V system. If my Delta Pro starts to run low, I can move power from the WattCycle batteries to the DeltaPro by using the EcoFlow 800W alternator charger. All of this is kept charged from the alternator using a Victron Orion XS 1400 50A DC-DC charger. Solar panels are next!
We received two 314ah batteries that had the tops popped open. Partially charged and appeared as new. Took a gamble and charged them at 50 amps with no issue. They appear as new, and I just used a marine battery strap to tie down the lid in case we ever need to do maintenance. Wrote to company and they responded with all the answers I needed. A great way to get twice the AH batteries for the same cost as 1 retail unit. Very happy with purchase and the company.
I wanted a deep cycle battery as a back up that could be attached to either my Dakota Lithium multi box or my Ancor power station. This battery not only vastly improves both but outshines them with its built in Bluetooth and great charge retention. It’s also built so per strong so I don’t need a separate case to carry it in.
I’m very happy with this purchase.
Will Prowes led me to this manufacturer and I am glad he did. After years of frustration with another manufacturer, I have a battery with plenty of capacity and the ability to see that the charging equipment I have is doing its job and how the loads in my camper draw down the stored charge.
I wanted the 314AH battery WattCycle offered and that was out of stock for a while. I entered my email and they notified me when it was available, then delivered it promptly following my order, with a promotional discount. It just fit in my camper's battery box and I followed instructions on WattCycle's web site to set up my Victron charging equipment. I am just two weeks out camping and everything is working as it should. Thanks WattCycle!
I have purchased four of these batteries and well, please with them. I have a lot of people look at my project and they love the way this Battery look and ask me How did I find this batteries and I told them I will be ordering six more of this batteries for another project that I’m working on, and I would like to take out time to thank watt cycle for their support and helping me with my project.
Works as described. Very good customer service... I ordered the eco flow adapter cable at the same time.
The battery speed a day later and arrived in very secure packaging. The adapter shipped a little later, but the responsive customer service team was able to get it shipped out quickly so I could get my battery connected to my Delta 2 and test it out. I highly recommend this to anyone with an Eco Flow Delta looking to excitable their power storage.
I replaced two FLA batteries on my sailboat with this. 1/3 the weight, 50% more usable energy, 10x the life and zero maintenance. The Bluetooth works great, but I thought the app needs a little work; it’s not intuitive what the buttons do…. Needs some online instructions. The on/off button on the battery is a great feature.
My Custom Offgrid Solar Designs Victron system is working great with my 4 WattCycle 314ah batteries. I had SOK 314ah batteries and could never get the cells to balance properly so I decided to try these and so far I have been impressed. The cell balancing is excellent! Customer support was good as well. Thanks [****]
Everything is working perfectly under high load and the tested capasity was as promised.
I just received my first Wattcycle 48 volt 100 AH battery. I am using it to power my Starlink set up and charging it with two 400 wat solar panels supplemented with AC power when the Ecoflow Delta 2 internal battery runs low. The system usually lasts about half way through the night on the internal battery. Now the system runs through the night with power to spare. Just ordered the 2nd battery. Looking forward to an adapter for the Delta pro 3 next
Long lasting power to play on the water all day.
I bought two of these to put in my RV. Just started testing them prior to installing them. I charged them both to 100%. I used a 2000W Xantrex inverter running a small electric heater for the load and a Victron shunt to measure the battery. The average current is about 120A dc when running the test. I set the inverter to shutdown at 11V so this is higher than the 10V normally used for capacity testing. Battery 1 showed 654Ah, battery 2 delivered 651Ah. I repeated the test a second time and got similar results. The battery case is steel so it seems rugged. I could barely lift the battery and I wish the handles were wider. I like that the terminals are on the end of the battery which works well for my installation.
It arrived quickly, although I haven't used it yet, the voltage is fine, I was able to charge it. I don't know exactly what secondhand means, but it looks new from the outside. I have previously bought 2pcs 24v/100Ah batteries from them and have been using them with satisfaction for my solar system for about a year. That's why I dared to buy a battery for my small boat here.
Wattcycle is the first company to hear a need and fulfill it. I've seen him change their shipping of seeing them change their way their terminals are set up their power switch and such a short period of time so this doesn't surprise me I got one of these cables and it works perfect. Keep up the good work guys.
I needed to replace my house battery with a lithium and this 100 AH Small footprint WattCycle was the perfect find. I can operate the boat for several days without a need for a recharge. It delivers consistent and ample voltage for my needs.
I just installed 2 of these 314 Ah batteries in my RV. So far they are working fine. Once they get a real test this spring I’ll know if they are good.
