Small boat battery install
- Thread starter Wansworth
- Start date
PCUK
Well-known member
It's YouTube, hard to know!
Wansworth
Well-known member
MontyMariner
Well-known member
A bit OTT on a 21 footer IMO and not what I call cheap. The positive part is the weight saving and hopefully longevity, but will he keep the boat long enough to reap that benefit.
Gixer
Well-known member
Alex has just sold the boat I believe.
William_H
Well-known member
"A tiny bit more expensive" by a factor of over 5. Not a good idea to my mind. Nigel will tell us to get old car batteries from a car breaker.
I have made up a bank of 18650 cells 3 in series gives near 12v. 3 lots in parallel give me 6.6 AH. In my case more than enough to run LED nav lights and radio for some hours. Light enough to slip in my bag to go home for recharge. So I would not take video as a good idea. It might suit some but there are lots of cheaper options available. (these are my best choice of 18650 cells at 6 squid a pair. https://www.bunnings.com.au/solar-magic-2200mah-lithium-ion-rechargeable-batteries-2-pack_p4352437. ol'will
I have made up a bank of 18650 cells 3 in series gives near 12v. 3 lots in parallel give me 6.6 AH. In my case more than enough to run LED nav lights and radio for some hours. Light enough to slip in my bag to go home for recharge. So I would not take video as a good idea. It might suit some but there are lots of cheaper options available. (these are my best choice of 18650 cells at 6 squid a pair. https://www.bunnings.com.au/solar-magic-2200mah-lithium-ion-rechargeable-batteries-2-pack_p4352437. ol'will
Stemar
Well-known member
A grand for a battery? OK, it's probably worth it for a liveaboard who wants to stay off grid, though I suspect there are cheaper alternatives, but I need some convincing it's right for me to run a fridge, especially as I understand I'll need more toys to charge it from 200w of solar and an alternator.
PaulRainbow
Well-known member
Looks like he made a tidy job of the connections, but it's a totally pointless video. So he fitted a battery and an inverter, so what. No details of the installation, how did he wire the inverter up ? How is he charging the battery ? He also needs to learn the difference and importance of watts, amps, amp hours etc.
His maths could do with a brush up too, £1150 is "just a tiny bit more expensive" than £200 ????
Even if you don't treat them perfectly (not abuse them), lead acid will last at least 5 years The Lithium is almost 6 times the price of lead acid, so it'll take 30 years to break even on cost. Guess what, the Lithium won't last 30 years
His maths could do with a brush up too, £1150 is "just a tiny bit more expensive" than £200 ????
Even if you don't treat them perfectly (not abuse them), lead acid will last at least 5 years The Lithium is almost 6 times the price of lead acid, so it'll take 30 years to break even on cost. Guess what, the Lithium won't last 30 years
