Over-voltage, over-current, over-charge, and short-circuit protection & Best wire Length for the space iMah Ryme B5 BT18443/BT28443 2.4V 500mAh Ni-MH Rechargeable Cordless Phone Battery Pack Also replace of the original old VTech battery part number: BT18443/BT28443 2.4V 500mAh Ni-MH BT18443/BT28443 2.4V 600mAh Ni-MH Over-voltage, over-current, over-charge, and short-circuit protection SuperSwivels® Male NPTF x Female NPSM 90° Elbow Inline Swivel | Dixon 2.4V 500mAh BT18443 LS62254 Cordless Home Phone NI-CD Replacement Vtech... High Quality 2.4V 500mAh Home phone Battery For Vtech BT18443 BT28443 89-1337-00 Low self-discharge, Fast and Rapid charge & Best wire Length for the space iMah Ryme B5-1 BT18443/BT28443 2.4V 500mAh Ni-MH Cordless Phone Batteries, 3-Pack Compatible with the following listed VTech Dect 6.0 Phone Models: Vtech LS6115 LS6115-2 LS6117 LS6117-2 LS6125 LS6125-2 LS6125-3 LS6125-4 LS6126 LS6205 LS6215 LS6215-2 LS6215-3 LS6217 LS6225 LS6225-2 LS6225-3 LS6225-4 LS6225-5 8913370000 89133700 BT18443 BT28443 Handset Cordless Phone Replace of the original battery part number: Vtech BT18443/BT28443 BT18443 BT28443 89-1337-00-00 Kindly Note: This battery only fit the original battery BT18443/BT28443 (ends number 443), CAN'T replace of the battery BT18433/BT28433 (ends number 433) because the size is different.Specification: Voltage: 2.4V Capacity: 500mAh Type: Ni-MH Rechargeable: Yes Size: AAAA*2 cells (Longer and thinner than aaa size) Weight: 18.1g / 0.59oz per battery pack Dimension: 52*18*8.5mm / 2.1*0.7*0.35inch Come with 3 iMah Ryme B5-1 BT18443/BT28443 2.4v 500mAh Ni-MH cordless phone battery packs QTKJ Cordless Phone Battery For VTech BT18443 BT28443 LS-6115 LS-6117 LS-6125 LS6126 LS6225 LS6205 LS6217 LS-6205 LS-6215 89133700 Cordless Phone Handsets (2-Pack