axca
1 mW
Greetings. My BBS02 36V 500W has been on the frame for a few weeks now while the rest of the bike is being assembled by my trusty LBS. Surely by the time of the first snowfall, my little do-it-by-lbs project would be complete
I am fond of dilly-dallying but the weather here sure doesn't. Then there is this recommendation about "charging the battery outside if at all possible" ... In a place where there are mainly 2 seasons with a beautiful fall but far too short, I can only sigh.
Anyhow ... onto battery, which I thought would be fairly straightforward ... until I came across this thread (very glad Dan and your loved ones were relatively unscathed, save for the PTSD and lost belongings - and I salute your willingness and candor in sharing your story here - it definitely jolted me upright reading the entire thing).
Obviously nothing is risk-free. The simple act of biking down main street here in any Canadian city risks life and limb far more than charging a slab of NCA battery ... but I don't plan on using the bike as a means of transportation (and not possible for half the year anyway - if gas hits $3/L then electric snowmobile or a Nissan Leaf would be more practical).
I am just hoping to minimize avoidable risks. Moreover, should such a calamitous moment ever arrive as when boss lady sees thick smoke and flashes of pyrotechnics spewing out of a battery, a different kind of fire could engulf the house with me in it.
From the above thread Dan spoke favourably of Ping batteries from past experience.
Here is also a quote from the thread just below:
A 36V 10AH Ping LFP battery (in its 11.4" x 5.7" x 1.9" incarnation likely will fit into a standard triangle bag I reckon) weighs 3.4 kg while a 36V 14AH best of the reputable NCA 18650 framepack weighs just 1 lb more. And 36V 17AH just 2 lbs more.
I understand that most folks around here would hands down pick the NCA 18650 packs with their 50% higher range at roughly the same weight. But for recreational use, is there any downside to LiFePO4? I also know that there have been users here attesting to incidents of LFP catching fire. But I am looking for "safer" as defined by this Battery University write-up.
Lastly, a possible side benefit (to me anyway) to having something like an LFP pack in a frame bag could be a built-in "suspension effect" that cushions vibration and decreases rattle from rigid framepacks clattering on sliders - especially offroad. But does LFP "soft pack" (such as the Ping) in a frame bag need extra padding?
In the end it is probably a decision with no "right or wrong" answers but heavily down to preference / personal threshold and degree of "risk-averse-ness". But I would appreciate any perspectives.
Thanks.
I am fond of dilly-dallying but the weather here sure doesn't. Then there is this recommendation about "charging the battery outside if at all possible" ... In a place where there are mainly 2 seasons with a beautiful fall but far too short, I can only sigh.
Anyhow ... onto battery, which I thought would be fairly straightforward ... until I came across this thread (very glad Dan and your loved ones were relatively unscathed, save for the PTSD and lost belongings - and I salute your willingness and candor in sharing your story here - it definitely jolted me upright reading the entire thing).
Obviously nothing is risk-free. The simple act of biking down main street here in any Canadian city risks life and limb far more than charging a slab of NCA battery ... but I don't plan on using the bike as a means of transportation (and not possible for half the year anyway - if gas hits $3/L then electric snowmobile or a Nissan Leaf would be more practical).
I am just hoping to minimize avoidable risks. Moreover, should such a calamitous moment ever arrive as when boss lady sees thick smoke and flashes of pyrotechnics spewing out of a battery, a different kind of fire could engulf the house with me in it.
From the above thread Dan spoke favourably of Ping batteries from past experience.
Here is also a quote from the thread just below:
www.recumbents.com said:...
My Ping battery is over 9 years old and it's still working fine. It was used heavily for 5 years, sat around for 4 years (I charged it every 6 months or so), and is now being used again.
Warren
A 36V 10AH Ping LFP battery (in its 11.4" x 5.7" x 1.9" incarnation likely will fit into a standard triangle bag I reckon) weighs 3.4 kg while a 36V 14AH best of the reputable NCA 18650 framepack weighs just 1 lb more. And 36V 17AH just 2 lbs more.
I understand that most folks around here would hands down pick the NCA 18650 packs with their 50% higher range at roughly the same weight. But for recreational use, is there any downside to LiFePO4? I also know that there have been users here attesting to incidents of LFP catching fire. But I am looking for "safer" as defined by this Battery University write-up.
Lastly, a possible side benefit (to me anyway) to having something like an LFP pack in a frame bag could be a built-in "suspension effect" that cushions vibration and decreases rattle from rigid framepacks clattering on sliders - especially offroad. But does LFP "soft pack" (such as the Ping) in a frame bag need extra padding?
In the end it is probably a decision with no "right or wrong" answers but heavily down to preference / personal threshold and degree of "risk-averse-ness". But I would appreciate any perspectives.
Thanks.