Price:  $82.99 (battery only), $94.99 (battery charger) 

The  Bioenno Power Lithium Iron Phosphate (LiFePO4) Battery, Model BLF-0910W  is a specialty 9V/10Ah battery designed specifically for low voltage applications such as sensors and emergency lighting. The battery includes a PCM (protection circuit module) and has an available 110VAC charger. Please note that this battery should be charged using a LiFePO4 compatible charger, and not with a charger for SLA batteries.

BLF-0910W Battery Specifications
Voltage: 9V
Capacity: 10Ah
Case Type: PVC Pack
Charge Connector: DC Barrel Plug
Discharge Connector:  Anderson Powerpole
Maximum Continuous Discharge Current: 10A
Maximum Peak Discharge Current: 20A (5 sec)
Max Power Delivered to Load @ 9V:  90 Watts (9V x 10A = 90 Watts)
Dimensions:(L x W x H) 5.0 in. x 2.0 in. x 2.7 in. (127 mm x 51 mm x 67 mm)   
Weight:  1.9 lbs.  (0.9 kg.)
Includes PCM (protection circuit module) that provides balancing, protection overcurrent, overdischarge, and overvoltage
Available 110VAC Charger

Compatible AC-to-DC Charger Specifications
Input Voltage: 110 VAC
Output Voltage:  10.8VDC
Current: 0.7A

Additional