I had one I had to "jump start" with another battery to get the voltage up high enough for the charger to recognize it.

I used a couple short pieces of wire with male spade connectors crimped to both ends. I shoved the spades between the battery contacts - positive to positive and negative to negative. After maybe 10 minutes I was able to plug it back up to the FlowZone charger and it charged normally.

I've had to do this with other batteries - the Chapin 20V sprayer battery comes to mind. I think they can sometimes just get discharged too far for the charger to pick them up.

YMMV

 

I have a dead one that they replaced, but I'd like to try this. As it's a post, I'm not sure how I'd find pos/neg - can you possibly explain this a little more? Thank you!

 

Thanks Ware. I waited for the new battery to arrive. Verified new battery worked. Charged it for 2 hours, then verified again. Tried your suggestion on all three batteried. No go. I'm thinking my error may be that I plug in the battery and let charge over night. I am now plugging the remaining battery in during the day for a couple of hours than unplugging. Will see if it lasts longer.

I am now looking for a different battery powered sprayer and specifically looking for experience with the batteries.

 

I've got a 2 gal Sprayers Plus with the 12v lithium battery that's held up well for over two years. I spray my 14,000sq ft yard on one charge and just plug the battery into the charger for the next time I need it. I think the charger cuts off after the battery is fully charged and stays in standby. I've thought about getting a 4gal Flowzone, but your battery issue may make me think twice. Would like to hear some more user experiences with the Flowzone.

 

Batteries are a PITA
Proper discharging and charging is key to extended life.
I was told under Ideal conditions lithium-ion batteries have aprox 4k cycles before they are spent? Thats Ideal cycles…..take it for what that is worth.

If your putting your batteries up for the “season” this will lead to shortened life.

also internal damage is a factor. I doubt flow zone batteries are built as tough as say a cordless hammer drill battery.

from what I understood from the Li batteries of my remote control car days is you have to run them down and charge them up to min/max regualry.
I used to have a maintainer for my RC stuff that would discharge the battery to IIRC 20% charge before charging them.

its good flow zone is warrantying your batts .
I would assume battery life to be short in sprayers not in constant use.

i doubt any other manufacture will be any better as far as batt life goes.

 

this worked great!

 

I had the same issue after only 3 uses although it was stored for about 7 months. Battery was stored in room temperature in a drawer. Pulled it out the other day and dead battery. Left it on the charger all day amd nothing. Called Flowzone and they wouldn't do anything. They said I shouldn't have let the battery die all the way. I do a lot of research before buying anything sadly I'm egretting this purchase.. should've went with a much less expensive brand with a good track record.

 

Many of the batteries on the market can be rebuilt. I have not disassembled a Flowzone battery but it does look like they come apart. I think many of us on here are "tinkerers" so maybe one of you with some dead batteries will give it a go and report back

 

these batteries and chargers probably have very poor battery management circuitry built in, which leads to lots of battery failures.

The My4Sons battery sprayers allow you to use whatever brand of battery you want. You can use your Milwaukee batteries and chargers, or your dewalt batteries and chargers, or Bosch batteries and chargers, all of which will probably hold up better than the flowzone batteries.

 

Ready to pull the trigger on a FZ Cyclone.
Disappointing to read they are still having issues with their batteries.
Noticed their instructions say to recharge if they drop below 3 bars.
Keep watching for discharging during non use.
They also sell adapters to use major brand batteries.
Any reason to go with the Typhoon over the Cyclone?
Doubt I will ever need the higher pressures of the Typhoon.

 

Ready to pull the trigger on a FZ Cyclone.
Any reason to go with the Typhoon over the Cyclone?

I bought the Cyclone and regret not spending the extra money for the bigger pump.

 

I'm very happy with my Cyclone 2.5. The largest nozzles I use are twin red 04 on setting #3 yielding me 1gal/1000ft².

I did ditch the stock wand in favor of a DFW wand.

 

I had the same issue with flowzone cyclone this is the second sprayer I buy and same issue when you don't charge it goes dead and you can not charge it again . that's terrible that I called and they never mentioned that they have a problem with their batteries and also their dealers

 

All Li-ion battery packs work that way. If they are left completely dead for a while they won't take a charge.
Best for long term storage is at 3.6v or a little over halfway charged.
Also they will last longer if not stored at full charge.
This is explained in the Flozone instructions.

 

I have a Fireboard BBQ thermometer/fan controller. In one of their blog posts they talk about "Best Practices for Charging LI-Ion Batteries".


HOW TO CHARGE A LITHIUM-ION BATTERY
Since these batteries have proven themselves and are here for the duration, we’ve compiled a list of best charging practices to maximize the performance of Li-ion (Lithium-ion) batteries.

1. Use the charger provided by the device manufacturer or a compatible charger per their specifications. FireBoard2 devices are also USB-PD compatible, which means they can support a high charge rate while also providing power to drive a fan.
2. Charge partially over fully. Since there is no memory effect, partially charging a Li-ion over a deep discharge-charge cycle is favorable. Complete charge cycles can deplete the life span of the battery. Generally, keep the battery charge between 20-80% before it drops to very low levels, and avoid a full charge.
3. Full battery discharges should be avoided since they can reduce the long-term reliability of the battery as well as lead to capacity loss.
4. Keep device software or firmware up to date. FireBoard devices use a smart battery charging chip, enabling us to release updates that optimize charging performance.
5. Avoid charging in thermal extremes and use with a range of 68-77ºF, which can degrade performance and reduce the battery’s lifespan.
6. For long-term or seasonal storage, maintain a charge level half of full capacity. Also, avoid storing a Li-ion battery in a fully discharged state.
7. Replace when necessary. It is important to understand that all batteries have a limited life span and have a finite number of charge cycles they can receive. When you notice a significant decline in charge life, a battery replacement may be necessary. Always be sure to properly dispose of batteries!

Not all items apply to this discussion but it has good info in it. Lines #2, #3, & #6 I didn't know.