Normally you would try to make sure the connectors are physically different. If the ones on the board aren't used, remove them or fill them with silicone sealant.
Normally you would try to make sure the connectors are physically different. If the ones on the board aren't used, remove them or fill them with silicone sealant.
They are JST connectors, and there seems to be no standard as to their polarity. Perhaps the addition of some kind of wrong polarity protection might do.
I wonder if a couple of diodes on the negative terminal would offer some protection.
In any event, I need to replace it with something or the same thing.
If you know of anything, please suggest.
I'd change all connectors to one standard, polarised type - eg. XC30 for something small like that.
If you cannot change the connection on whatever the battery is used with, use a short JST cable to an XC30 plug and leave that connected to the device.
(You cannot add diodes without messing up the charge voltage, on a fixed voltage charger. It would need an electronic sense circuit and relay, or something similar).
I'd change all connectors to one standard, polarised type - eg. XC30 for something small like that.
If you cannot change the connection on whatever the battery is used with, use a short JST cable to an XC30 plug and leave that connected to the device.
(You cannot add diodes without messing up the charge voltage, on a fixed voltage charger. It would need an electronic sense circuit and relay, or something similar).
No, the 3200 one 'may' be fairly close, but usually they are about 2600 for that size of battery - certainly the branded Samsung ones we buy at work are only 2600 mAh.
I've got some at home that are listed as 4000 mAh - although I'm dubious about that claim, but they are probably higher than 2600 mAh - as they are physically slightly larger than 18650's (so won't fit in 18650 battery holders, or anywhere that space is tight).
No, the 3200 one 'may' be fairly close, but usually they are about 2600 for that size of battery - certainly the branded Samsung ones we buy at work are only 2600 mAh.
I've got some at home that are listed as 4000 mAh - although I'm dubious about that claim, but they are probably higher than 2600 mAh - as they are physically slightly larger than 18650's (so won't fit in 18650 battery holders, or anywhere that space is tight).
I'd change all connectors to one standard, polarised type - eg. XC30 for something small like that.
If you cannot change the connection on whatever the battery is used with, use a short JST cable to an XC30 plug and leave that connected to the device.
(You cannot add diodes without messing up the charge voltage, on a fixed voltage charger. It would need an electronic sense circuit and relay, or something similar).
I'd change all connectors to one standard, polarised type - eg. XC30 for something small like that.
If you cannot change the connection on whatever the battery is used with, use a short JST cable to an XC30 plug and leave that connected to the device.
(You cannot add diodes without messing up the charge voltage, on a fixed voltage charger. It would need an electronic sense circuit and relay, or something similar).
You could protect the circuitry with a diode connected reverse polarity from the + conductor to to ground, and a fuse in series with the + connector. A reverse polarity input would blow the fuse (which needs to be sized for current and speed). Shouldn't be too difficult to calculate.