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NEW
WattLINK P90D Expansion Cable for Bluetti AC300 / AC200MAX / AC200L, 48V Battery-to-PPS Adapter with 80A Fuse & 8AWG Wire
$99.99 AUD
⚡ Pre-order Notice — The BLUETTI Expansion cable is on pre-order and ships from late November. For kits, batteries ship earlier; cables follow separately. Limited quantities—pre-order now to secure yours.
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- 50A High-Speed Bidirectional Charging: Delivers up to 50A of bidirectional current for stable and efficient power transfer during both charging and discharging.
- Industrial-Grade 8AWG Cable: The large-gauge design reduces resistance and heat buildup, helping ensure safe operation under high loads.
- 80A Built-In Fuse Protection: Engineered with an integrated 80A fuse to instantly trigger protection and prevent thermal overload under extreme current conditions.
- Massive Value Solution: Skip buying multiple expensive proprietary expansion batteries. Connect a reliable 48V rack or floor-standing battery to massively scale your total watt-hours on a budget.
- Optimal 39.37-Inch Length: Perfectly balanced length (1 meter) to ensure zero compromise on performance, flexibility, or neat cable management.
- *Before connecting, make sure both devices are 51.2V LiFePO₄ systems and that their SOC and voltage levels are close, with a voltage difference of ≤1V. If protection is triggered due to a significant voltage difference, restart the portable power station and reconnect.
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Bluetti AC200MAX Expansio
Designed primarily for BLUETTI 51.2V LiFePO₄ Systems (such as the AC200MAX, AC300*, and AC200L*) and compatible 48V series batteries (including WattCycle 48V 100Ah V2 3U rack batteries, 48V 105Ah golf cart smart batteries, and 48V wall-mounted series).
Voltage & Chemistry Match: Both units must be 51.2V LiFePO₄ systems with tightly matched State of Charge (SOC) and voltage levels (voltage difference ≤ 1V).
⚠ CRITICAL SAFETY WARNINGS — READ BEFORE INSTALLATION
1. Short-Circuit Prevention: Always secure and lock the M8 O-type terminal side first before plugging the other end into the power station expansion port. Loose hot wires can accidentally touch and trigger a dangerous short-circuit.
2. Voltage Difference Check: Ensure the voltage difference between the battery and PPS is ≤ 1V. If protection mode trips due to a voltage gap, simply restart your energy storage unit and reconnect.
3. Matched Capacity & Power: Match loads appropriately. Extreme mismatches in capacity or power draw can generate excessive current, exceeding safe limits and blowing the 80A fuse.
Our batteries come with a 5-year warranty, which can be extended to 7 years total upon product registration. Accessories are covered by a 1-year warranty, and like-new (refurbished) batteries include a 1-year warranty.
For full terms, conditions, and claim details, please visit:
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The WattLINK Story: Proven Tech, Engineered for PPS
Following the immense success of our EcoFlow-compatible expansion cables—which have been thoroughly battle-tested and trusted by thousands of WattCycle users in the field—we are proud to introduce the WattLINK BLUETTI AC200MAX Expansion Cable, our second major brand-specific power transfer solution.
- 8 Months of Rigorous Laboratory R&D: Initiated in February 2026, this product is the result of 8 months of relentless laboratory testing, protocol cracking, and safety optimization.
- Built on Proven Field Experience: Because our foundational high-current architecture has already been vetted and heavily adopted by the WattCycle community, you are getting a mature, field-proven technology.
- Welcome BLUETTI Users: Say goodbye to brand-name markups. Experience the same freedom to scale your capacity securely and affordably today.
WattLINK - Bluetti AC 200MAX Cable Technical Specifications
FAQ about WattLINK & Bluetti AC200MAX Cable
Yes, it is plug-and-play! However, for maximum safety, please follow this connection rule:
Step 1: Connect the ring terminals (positive to positive, negative to negative) to your external batteries FIRST.
Step 2: Plug the adapter into your BLUETTI power station LAST.
Note: Our cable features flexible 8AWG (200°C rated) silicone wire, positive heat-shrink protection, and a factory-installed 80A inline fuse to safeguard your setup.
Because the cable creates a direct, high-current path between batteries. If you connect a 100% full external battery to a 5% depleted power station, massive equalizing currents will surge through the wire and blow the fuse. Always ensure both your BLUETTI unit and external batteries are at similar charge levels (e.g., both at 100%) before turning them on together.
Since third-party batteries don't communicate BMS data directly with BLUETTI, the power station estimates state-of-charge purely based on overall voltage curve. As you run heavy loads, the power station display will drop faster than the external battery readout (SoC Drift). This is 100% normal—power is still flowing properly!
The WattLINK-Bluetti AC200MAX cable is designed for direct connection to the BLUETTI AC200MAX. For models such as the AC300 and AC200L, due to stricter internal communication requirements, at least one official B300 expansion battery must first be connected to serve as the system "guide" (establishing the necessary communication handshake) before the port can recognize the auxiliary power input.
Any 51.2V LiFePO4 battery that matches your power station’s voltage architecture! This includes WattCycle Server Rack batteries, our portable 50Ah LiFePO4 batteries, 51.2V Golf Cart batteries, or even massive wall-mounted battery systems.
No. WattLINK operates on an independent "no-protocol" direct DC transfer method. Your BLUETTI station and WattCycle battery will each manage their own internal BMS and State of Charge independently, bypassing the need for proprietary brand software.
Yes! WattLINK supports bidirectional fast charging. You can transfer energy back and forth depending on whether you need to recharge your portable power station or draw from your large 48V WattCycle storage bank to power heavy appliances.
For safety, both units should have a voltage difference of ≤ 1V before connecting. If the voltage gap is too wide, the power station's native protection mode may trigger or the built-in 80A fuse will protect the circuit. If it pauses, let the units equalize or restart the system before reconnecting.
Safety is paramount in high-current 48V setups. Securing the M8 O-terminals to the battery first ensures that loose, live wires cannot accidentally brush against each other and cause a dangerous short-circuit while you handle the power station end.
Absolutely!
Gas Generator Cleaning: Pass dirty AC generator power into a dedicated charger -> charge your 51.2V batteries -> feed clean power into the power station to output pure sine wave power.
Unlimited Solar Expansion: Besides plugging solar panels directly into your BLUETTI, you can connect an external high-power MPPT charge controller straight to the external battery terminals, unlocking virtually unlimited solar input potential.
To draw maximum capacity from your external batteries without premature shutdown:
Go to Settings -> Advanced Settings -> Charge Limit Settings.
Set the Max Charge Limit to 100%.
Set your discharge threshold in TOU/Self-Consumption mode to the lowest possible setting.
I love the product so far. Would have been nice if Fedex did not drop it on its face multiple times. Service team was great and helped me resolve the issue. A+ Support Team.
I've been using this battery for 5 days now, paired with the EcoFlow Delta 3 Plus. It works flawlessly
I bought the 100 A battery and with it to supply the electric motor for my kayak and what can I say the runtime is incredible over 8 hours more than I thought and the access via Bluetooth also works great thank you again
Products are great but the website makes it hard to compare size and prices. You can't back track web pages to look at different products.
i had an issue with one of my batteries which had to be replaced. the support given by lyra was fantastic as it was not an easy delivery. i was in malta when this occured and heading to sicily and on to tunisia. dpd cannot deliver to any european islands or africa. eventually a contact was coming from greece so lyra managed to get the battery sent there after a lot of work. well done lyra you are a credit to wattcycle.
The WattCycle 12000 Super is a capable 12kW split-phase all-in-one inverter with a standout 200A bypass, dual MPPTs rated for up to 24kW of PV, and strong 250A hybrid charging that exceeded expectations once running, handling real loads, surge, and whole-home scenarios better than anticipated. That said, the learning curve is kinda steep thanks to a mediocre manual with unclear or incomplete guidance on settings like neutral-ground bonding and priorities, and the included Solarman app plus Wi-Fi dongle is pretty bad—flaky connectivity, limited usability, and extremely slow update speed that make monitoring frustrating. Getting it talking cleanly to Solar Assistant was also a tough process with workarounds needed rather than plug-and-play support. Overall it’s a solid hardware performer for the money if you’re comfortable digging into forums and videos, but the documentation and monitoring ecosystem hold it back from being truly hassle-free. If you are just looking for the ultimate all in one inverter with a 200a bypass this is definitely it.
DE accu is perfect doch de 12Volt lader is een probleem gevalletje.
De ventilator maakt te veel geluid in de wagen.
I would like the app to be more comprehensive, with more information on the status of the cells.
The 48V 100AH Server Rack battery performs exactly as advertised and the Ecoflow adapter cord works well also. Love the product so far. But it is very heavy, at over 90 Lbs.
I don't normally do reviews or surveys. I'm doing this one because I have a mixed opinion.
I received some assistance fairly quickly VIA email, but called with a question when installing my batteries and never received any response to my message. I had a concern about how I was connecting them, and worried that I could damage the batteries or cause other problems. Fortunately, neither came to fruition.
I had to be neutral on this since I have not used the battery yet. The one thing I was not expecting was how difficult it was to move around. At nearly 100 pounds with no handles - it is virtually impossible to lift and place on the bottom of a 2 shelf mobile cart. I'm going to have to unbolt the top shelf and remove it in order to have any chance of lifting it onto the bottom shelf. Trying to find straps to place under it so I can lift it up.
It was nice being able to see the charging statistics and verify my RV charging system was working and how many amps were being fed to the battery when charging from the generator, or the shore power, or from the Alternator while driving. I feel more comfortable with the switch from lead-acid to LiFePO4
Customer service is awful. Sent me the wrong battery. Then wouldn't send the right one until I sent the old one back. They said they would do a cross shipment so I would recieve my battery faster. I've been without power for 3 weeks now. This company sucks and so does their customer service. I will never buy another battery from them again. Ill be switching to eg4 batteries. DO NOT BUY FROM THEM. THEY DO NOT GIVE A SINGLE SHIT ABOUT YOU OR YOUR SITUATION. Absolute shit company. I still dont have my new battery.
I’ve used this battery in conjunction with a delta 3 for about a month and while it charges through the inverter, they never match charge levels or even come close. In the morning after an evening of discharge, the delta 3 will show around 64% and the battery shows around 94%. For test purposes I set max discharge to 30% and it shut off at 30% as expected but there was more than 70% left on the watt cycle. While it does seem to last longer with the watt cycle, it will still run out of power when there’s plenty of battery left. Not sure if the issue is in my settings or if this is just how it works.
The package was shipped and received well. I noticed I was missing some of the bolts and contacted customer service who helped me out in a timely manner. I would certainly buy again if I needed more batteries.
Couldnt be happier with this battery . Was previously using a lead acid leisure battery and getting no more than a days fishing and that is flyfishing so alot of start / stop and mostly lower gears . Now though after putting the new watt battery to the test i cant believe the difference , ive even added a few hours of trolling to the mix and i got four days fishing with 22% life still to go. We even had a wake behind the boat at full speed which i never remember seeing with this motor . The motor is a minnkota endura 50lb and at least 15 year old . The old leisure battery was over 5 years old but like i said i dont ever remember the motor having that much power . So to sum it up im absolutly delighted with my purchase which i pondered over for far too long
The blutooth is something every battery going forward should have , gives you prfect cotroll over your consumption for the following days fishing . Happy days now i just have to start catching
Good price. One side of the battery is not flat. Let's hope it is manufacturing and not old cell.
Never received the advertised monitor. Emailed support about the monitor and ecoflow adapter, was told they'd be coming in separate packages. The ecoflow adapter showed up, the monitor didn't. Battery works, but I really wish they would just send what I paid for. I could've ordered something similar from Temu for half the price.... and I've had success with Temu batteries.
