Unfortunately not all buttons tops are the same length as Fenix’s proprietary battery lengths.
Some 18650’s are let’s say 18.1mm x 65.2
Then their button might only be 4mm, whereas another might be 5mm and the cell is 18.1 x 65.1 which overall is the same length.
I’d measure the battery in question and email a few companies like LiionWholesale, IMR batteries etc if they could give you the actual length since all batteries have an acceptable variance.
Example: Samsung 30Q data sheet
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Can be acceptable between 64.7 - 65mm then button top can vary
Any charger that can accept it is fine… even nitecore, just better chargers can charge at a higher rate, which honestly isn’t always better. NC just drops to like .350mA when all bays are in use if the typical older .75a dual bay or 1.5a 4 bay
The only upside to a protected circuit is the crush factor for them, if you drop a light and it crushes the circuit it won’t hard short and possibly cause thermal runaway..
The positive of a cell is obvious, but the whole can is the negative and why cells are wrapped and have an insulator under the wrap on the positive side for some added protection against a hard short when the rolled edge wears.
TL;DR not all protected cells are of proper length to be utilized in flashlights, measure call and buy at least a 10a cell for a single cell light
Sent from my iPhone using Tapatalk
Some 18650’s are let’s say 18.1mm x 65.2
Then their button might only be 4mm, whereas another might be 5mm and the cell is 18.1 x 65.1 which overall is the same length.
I’d measure the battery in question and email a few companies like LiionWholesale, IMR batteries etc if they could give you the actual length since all batteries have an acceptable variance.
Example: Samsung 30Q data sheet
Can be acceptable between 64.7 - 65mm then button top can vary
Any charger that can accept it is fine… even nitecore, just better chargers can charge at a higher rate, which honestly isn’t always better. NC just drops to like .350mA when all bays are in use if the typical older .75a dual bay or 1.5a 4 bay
The only upside to a protected circuit is the crush factor for them, if you drop a light and it crushes the circuit it won’t hard short and possibly cause thermal runaway..
The positive of a cell is obvious, but the whole can is the negative and why cells are wrapped and have an insulator under the wrap on the positive side for some added protection against a hard short when the rolled edge wears.
TL;DR not all protected cells are of proper length to be utilized in flashlights, measure call and buy at least a 10a cell for a single cell light
Sent from my iPhone using Tapatalk
