Click to expand Tap to zoom 2.9 Amp Hour battery by Valen Save $0.00 $39.00 SKU 12 TP 2.9 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Power Charge AGM 12 Volt 2.9 A/H Battery. Battery size is 7.9 x 5.6 x 9.9cm These commonly fit some patient lifters.