Review on 🔋 Kastar Battery Replacement for Panasonic Cordless Phone: N4HKGMA00001, P-P511, HHR-P511, Type 24 Rechargeable Battery by Richie Jacobson

Ordered 4 pieces. All Synergy versions 900 mAh. So 900 mAh is about the original capacity, the Energizer ER-P511 had 850 mAh. I just wanted to try 1800mAh for longer talk time (if available). I will remove the rating for the photo and description otherwise it's 5 stars. (Interestingly, at the time of writing this review, the Synergy product was getting an extra $1 for a battery from the same seller, so that's it). Good replacement deal if you want original capacity, price is right. It is a good replacement for NiMH. Especially with free Prime shipping. Decent packaging around the cells, looks good (like the original batteries). They work fine. Same size and shape as the original. The delivery was very quick. I haven't had them long enough to know how long the cells will last, but it depends on a lot of factors.