Forum Discussion

Groover's avatar
Groover
Explorer II
Feb 02, 2021

New LiFePo tech?

I noticed several companies are now listing 300+Ah LiFePo batteries in the same size housing and and just a few more pounds than the 200Ah versions. It seems to be so new that no reviews have come in yet that I can find. If anyone can find some reviews on these batteries I would like to see them.

The one that I like best is the Flypower since it is rated for 320A continuously with 640A 3-5sec. I don't think that I would ever need that much but I like having the extra head room.

That one battery would fit in the space of just 3 of my 4 GC2 batteries, give me about 3 times as much energy storage and reduce my weight by around 180lbs. The also claim 1C or 320A charging ability so lots of headroom there too.

The ratings on their batteries that have been out a while seem to be very good.

Flypower 320Ahr
  • time2roll's avatar
    time2roll
    Nomad
    Feb 03, 2021
    theoldwizard1 wrote:
    Anyone advertising Ah for a short period is trying to SCAM you !


    Where do you see this?
  • StirCrazy's avatar
    StirCrazy
    Moderator
    Feb 03, 2021
    pianotuna wrote:
    270Ah 12V Silicon Dioxide Battery 8D Marine & Off-grid $1,237.00

    70 kg (154.5 lbs)

    Max Discharge Current (25°C/77°F) 2500A

    Max Charge Current 65A

    Max Charge Voltage 14.7V

    Dimensions 26.9 x 52 x 23.1 cm (10.59 x 20.47 x 9.09")

    That is in US dollars:


    https://www.azimuthsolarproducts.com/product/12v-270ah-sio2-battery/


    you sure thats 2500 A for a discharge current?
    just looked it up, thats for 5 seconds, whats the max continuious discharge they dont seam to mention that.

    here is a comparason for peoples info if they want to build LiFePO4
    cells off ailibaba 280AH for 561.61 CDN plus you would need to spend about 100 bucks on a BMS and 30 bucks on stuff to make a case.

    weight, 48.5lbs

    Max continuious discharge current 280A

    Max Charge current 280A

    Mac charge voltage 14.6

    Charge temp range -5C to 60C

    Discharge temp -30C to 60C

    size 6.8" x 7.8" x 11.2"

    Steve
  • StirCrazy's avatar
    StirCrazy
    Moderator
    Feb 03, 2021
    theoldwizard1 wrote:
    200 Ah and 280 Ah prismatic cells have been available direct from China for almost 1 year.

    Anyone advertising Ah for a short period is trying to SCAM you !


    300ah cells are now popping up.

    I looked at a deconstruction of a battle born they are using the larger traditional style batteries, but companies are starting to use the prismatic cells now.

    Steve
  • theoldwizard1's avatar
    theoldwizard1
    Explorer II
    Feb 03, 2021
    200 Ah and 280 Ah prismatic cells have been available direct from China for almost 1 year.

    Anyone advertising Ah for a short period is trying to SCAM you !
  • Lwiddis's avatar
    Lwiddis
    Explorer II
    Feb 02, 2021
    Prices on Lithium batteries appear to be cracking. Good news!
  • time2roll's avatar
    time2roll
    Nomad
    Feb 02, 2021
    Trojan Trillium 111 is $1,350

    Must be the prismatic cells in the FlyPower that adds value.
  • BFL13's avatar
    BFL13
    Explorer II
    Feb 02, 2021
    The Trojan Trillium 111AH LFP weighs 30 lbs, so three would be 90 lbs for 333AH. A few lbs saved by not having three battery cases, etc, so the actual LFP "density" would be much the same, looks like.
  • time2roll's avatar
    time2roll
    Nomad
    Feb 02, 2021
    $1450 is a great price. Compare to RELiON at $3,450 for 300 a/h 82 lbs.
  • opnspaces's avatar
    opnspaces
    Navigator II
    Feb 02, 2021
    Wow that battery at 320 ah is only 34K (75 lbs). I think my single GC2 is about 60 lbs. I noticed the $1,500 price though.

    Here's to hoping these go the same way as the $1,500 VCR and come down in price to something more affordable. If and when they do I'll certainly be on the band wagon to get one.

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