I've gotten many cheap batteries on eBay. I'd say about 75% are worth it... the rest have trouble charging from the beginning or don't last a year.
I decided to try something that I heard was better. I'm pretty sure that the large "extended" batteries that I've gotten on eBay don't last that much longer versus the additional size.
I just ordered one of
these. The price fluctuates as it is based on the Euro (mine was about $1.50 less than this listed price) but is still reasonable, especially since there is no additional charge for shipping.
Sprint PPC-6700 battery (1500 mAh) Suitable for:
PPC-6700
Compatible with:
BTR6700B, BTR6700, 35H00060-01M, HERM, 300, PA16A, HERM160, 35H00074-00M, 35H00060-0M, PM16A
Capacity:
1500 mAh
Type:
Li-pl
Voltage:
3.7 V.
12 month warranty
Model number:
CS-AP6700SL
Normal price:
$ 40.03
Our price:
$ 31.13 