そんなに使った記憶はないのですが…申し訳ありませんが使用頻度は覚えていません。

LP-E19 LP-E19 / LP-E4N Battery with LCD Dual Slot Fast Charger for Canon EOS 1DX / 1D X Mark II / 1Ds Mark III / 1D Mark III / 1 - AliExpress

Canon LC-E19 Battery Charger

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46KB"],"2001":[null,null,null,null,null,null,null,1],"2003":[null,"zlXWW3AC4IeJiM

LP E19 LPE19 LP-E19 Li-ion Battery for Canon LP-E4 LP-E4N LPE4N EOS 1DX MARK 2 1DX 1DS MARK 3 1D MARK 3 1D MARK 4 R3 - AliExpress

Used Canon LP-E19 Battery | MPB

LP-E19 LP-E19 / LP-E4N Battery with LCD Dual Slot Fast Charger for Canon EOS 1DX / 1D X Mark II / 1Ds Mark III / 1D Mark III / 1 - AliExpress

Amazon.com: BM Premium 4 Pack of LP-E19 High Capacity Batteries and Charger for Canon EOS R3, EOS 1D X Mark III, EOS 1D X Mark II, EOS 1DX, EOS 1Ds III, EOS

Rent a Canon LP-E19 Battery at LensProToGo.com

Amazon.com: Watson LP-E19 Lithium-Ion Battery Pack (10.8V, 3500mAh) : Electronics

Canon LP-E19 Battery Pack (2750mAh) - SHUTTER SHOP

Amazon.com : Canon Battery Pack LP-E19 : Electronics

44KB"],"2001":[null,null,null,12,12,15,15,1],"2003":[null,"PQV8kxy8zumSwM

Canon LP-E19 Battery by Wasabi Power