XTAR VTC4 OVERSTOCK SALE 50% OFF!

Hey there BLF we have too many of these cells and need to move them out!

Coupon Code: “XVTC4” for 50% OFF the retail price!

free bump

Thanks for the bump :slight_smile:

What would the shipping cost to Australia be?

And to France please ?

Ordered six but do these batteries have a protection circuit? Listing says “designed with a multi-protection battery cell”, what does that mean? Can a battery with a 25A drain have a protection circuit?

Very unlikely to have a protection circuit. The upper limit on protection circuits is about 7.5 amps. However high current IMR cells are generally much more tolerant of abuse than the ICR cells that most of us use in more moderate (3-4 amp draw) applications. The protection circuit is largely to prevent thermal runaway. The higher internal impedance of ICR cells makes this much more of an issue than it is for IMR cells, hence they are less likely to need protection circuits.

One of the problems with protection circuits is they introduce additional resistance. The heating losses are I^2 x R. 25^2 is 625, so R can be very small and still generate a lot of heat at 25 amps. So you won’t find
protection on cells designed to deliver 20-30 amps.

You can calculate shipping when adding it to cart, should be around $10-15usd.

No protection circuit