Re: [EVDL] Drop-in li-ion replacements for PbSO4

2020-03-28 Thread Alan Arrison via EV
Exactly, hospital aren't buying some no name Chinese garbage. Any lithium battery, drop in or not, has to have an onboard BMS for safety. On 3/28/2020 6:10 PM, Lawrence Rhodes via EV wrote: The liability if something goes wrong is untenable. All the lithium drop in types which feature exact ca

Re: [EVDL] Drop-in li-ion replacements for PbSO4

2020-03-28 Thread Lawrence Rhodes via EV
The liability if something goes wrong is untenable. All the lithium drop in types which feature exact case sizes have BMS appropriate to use. That is cell voltages when in series match 12, 24, 48 or 72volt batteries. Many of these were developed for use in portable hospital devices which worked

Re: [EVDL] Drop-in li-ion replacements for PbSO4

2020-03-28 Thread EVDL Administrator via EV
On 28 Mar 2020 at 10:30, Willie via EV wrote: > Several suggest special LFP chargers. That rather contradicts "drop in > lead replacement". I looked into these a few years ago. IIRC, none of them bore a brand name that I recognized. Some suggested using simple wall warts for charging, which

Re: [EVDL] Drop-in li-ion replacements for PbSO4

2020-03-28 Thread Willie via EV
On 3/27/20 9:47 PM, Alan Arrison via EV wrote: Do these so called "drop in replacements" mention having onboard protection/balancing circuits? Several suggest special LFP chargers. That rather contradicts "drop in lead replacement". If they don't mention it in their literature, I would st

Re: [EVDL] Drop-in li-ion replacements for PbSO4

2020-03-27 Thread Alan Arrison via EV
Do these so called "drop in replacements" mention having onboard protection/balancing circuits? If they don't mention it in their literature, I would stay far away from their battery. Al On 3/26/2020 10:31 PM, evln via EV wrote: While looking at homes4sale https://photos.zillowstatic.com/u

Re: [EVDL] Drop-in li-ion replacements for PbSO4

2020-03-27 Thread Lawrence Rhodes via EV
This is a good strategy. I am very happy with the performance and carefree nature of the drop in replacement. No modifications needed. This is for the eGo scooter. I also upgraded the headlight to LED. Charger light turns green at end of charge. However I ride my pedal cycle more so I will prob

[EVDL] Drop-in li-ion replacements for PbSO4

2020-03-26 Thread evln via EV
While looking at homes4sale https://photos.zillowstatic.com/uncropped_scaled_within_1344_1008/ISbhbh9k36d8qz00.webp and considering how far each are from the sa VA hospital (will a mobility e-scooter's range be enough for a round trip), I came across some links for others to explore (I