Battery woes.
 

I focused on finding a compact and light battery. I bought into the Nocqua 12v battery. That “purchase regret” thread reminded me of this. Haha. It’s not great, it’s barely good.

It’s a lithium ion battery. It’s four months old and dying a slow death. It’s max charge is 11.99 v. At its peak, I dint think I saw better than 12.11V. My appliance has a voltage meter, and I watch it tick down pretty quickly. Unscientific; it loses 0.1V every 40 minutes. I’m running my appliance dimmed down to save juice. I’d estimate 0.75a per hour?

I wish I could measure power consumption. I dint know how with my Craftman multimeter.

Nocqua put a replacement battery in the mail for me. Despite them saying it’s within design parameters. 11.7 -12.6 V! That’s a wide parameter! No?

Customer service is great tho. I gotta admit.

Here is the tiny battery. Super nice how tiny it is. http://forums.pelicanparts.com/uploa...1608136943.jpg

With batteries, like many things in life, size really does matter.

hahahha...

i thought about bastardisizing a good drill battery, and using a voltage regulator to neck it down to 12v. but that takes thought..i dont like thought. :)

I finally gave up and went with the Antigravity batteries in my Cayman and Panamera and I can say they are spendy but worth it. They've saved me 3 times now with the reboot technology (battery shuts off when voltage gets to low but keeps enough juice in the battery to start the car a few times)

I also purchased the battery tracker which is BLE and has an app for my phone that shows me voltage, cold crank and charging information.

Lead-acid is dead to me

Powering your kayak fish finder (at least trying to) ?

pretty cool!!

what?!!

https://www.amazon.com/MAKITA-Battery-Connector-Adapter-Holder/dp/B086S47GZG/ref=asc_df_B086S47GZG/?tag=hyprod-20&linkCode=df0&hvadid=459717572353&hvpos=&hvnetw= g&hvrand=12077475527016372401&hvpone=&hvptwo=&hvqm t=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9032011&hv targid=pla-943400236962&psc=1

what will have longer run time?

18 volt makita battery with 3.0Ah

or

12v battery with 10Ah.?

i do realize i would need to buy a voltage regulator correct?

Ive been powering things with drill batteries for a while now, I recommended one with built in low voltage protection and 12 power supply to make things a bit easier.

Watt hours is the true measure of the energy capacity of a battery
18v X 3 AH is 48 Whrs
12v X 10 Ahrs is 120 Whrs

The latter is a much bigger battery and unless there is a seriously janky power supply internal to your device, it will last longer (assuming a 12v device that is also compatible with 18v).


One has to be carefull of some of these amazon battery powersupplies, they sometimes rate the cell capacity before the power supply.

For example the box says 5Ahr capacity and 12v capability. Really it may be a 5AH 4 volt cell that can only output around 1.3 Ah @12v after the voltage is stepped up by the internal power supply. Whrs eliminates this marketing dishonest, though they sometime report optimistic numbers for this as well

12V regulator - $9.49

https://www.amazon.com/Converter-Reducer-Regulator-Adapter-DC15-40V/dp/B01EFUHH1U/ref=pd_sbs_2?pd_rd_w=P24V0&pf_rd_p=ed1e2146-ecfe-435e-b3b5-d79fa072fd58&pf_rd_r=749WD1TKYESR3V7QC6TM&pd_rd_r= 4d206317-c6e9-4e35-90f2-2277b68201cd&pd_rd_wg=quOwA&pd_rd_i=B01EFUHH1U&psc =1

Really should use something like this as well

https://www.amazon.com/daier-XH-M609-12V-36V-Disconnect-Protection/dp/B07RK3RZNH/ref=sr_1_4?dchild=1&keywords=low+voltage+cutoff&qi d=1608146049&s=electronics&sr=1-4


That is why it is good to go with the all in one 12v adapter with LVC. Some batteries have low voltage protection built in but it is in the tool for other brands. If you run a drill battery much below 3V per cell it wont last long.

dang..i really learned a lot here from you. thank you.

No Prob, Virtual fist bump

I buy the cheap 10,400 mah battery packs. Solar charge. They seem to only last a couple months, but 10 bucks a pop. Can't really complain.