diff --git a/.changeset/witty-buses-worry.md b/.changeset/witty-buses-worry.md
new file mode 100644
index 0000000000000..dbdc0e834bf33
--- /dev/null
+++ b/.changeset/witty-buses-worry.md
@@ -0,0 +1,7 @@
+---
+"@eth-optimism/batch-submitter": minor
+"@eth-optimism/core-utils": patch
+---
+
+- Use raw transaction in batch submitter -- incompatible with L2Geth v0.1.2.1
+- Pass through raw transaction in l2context
diff --git a/packages/batch-submitter/src/batch-submitter/state-batch-submitter.ts b/packages/batch-submitter/src/batch-submitter/state-batch-submitter.ts
index 77d1aae23d22c..f23480ea19802 100644
--- a/packages/batch-submitter/src/batch-submitter/state-batch-submitter.ts
+++ b/packages/batch-submitter/src/batch-submitter/state-batch-submitter.ts
@@ -3,7 +3,12 @@ import { Promise as bPromise } from 'bluebird'
 import { Contract, Signer, providers } from 'ethers'
 import { TransactionReceipt } from '@ethersproject/abstract-provider'
 import { getContractFactory } from 'old-contracts'
-import { Logger, Bytes32, remove0x } from '@eth-optimism/core-utils'
+import {
+  Logger,
+  Bytes32,
+  remove0x,
+  toRpcHexString,
+} from '@eth-optimism/core-utils'
 
 /* Internal Imports */
 import { L2Block } from '..'
diff --git a/packages/batch-submitter/src/batch-submitter/tx-batch-submitter.ts b/packages/batch-submitter/src/batch-submitter/tx-batch-submitter.ts
index 3df0b7cbf8a26..98ec83d6a8621 100644
--- a/packages/batch-submitter/src/batch-submitter/tx-batch-submitter.ts
+++ b/packages/batch-submitter/src/batch-submitter/tx-batch-submitter.ts
@@ -1,20 +1,13 @@
 /* External Imports */
 import { Promise as bPromise } from 'bluebird'
-import { BigNumber, Signer, ethers, Wallet, Contract, providers } from 'ethers'
+import { Signer, ethers, Contract, providers } from 'ethers'
 import {
   TransactionResponse,
   TransactionReceipt,
 } from '@ethersproject/abstract-provider'
 import { getContractInterface, getContractFactory } from 'old-contracts'
 import { getContractInterface as getNewContractInterface } from '@eth-optimism/contracts'
-import {
-  Logger,
-  EIP155TxData,
-  TxType,
-  ctcCoder,
-  EthSignTxData,
-  txTypePlainText,
-} from '@eth-optimism/core-utils'
+import { Logger, ctcCoder } from '@eth-optimism/core-utils'
 
 /* Internal Imports */
 import {
@@ -24,13 +17,7 @@ import {
   AppendSequencerBatchParams,
 } from '../transaction-chain-contract'
 
-import {
-  L2Block,
-  BatchElement,
-  Batch,
-  QueueOrigin,
-  queueOriginPlainText,
-} from '..'
+import { L2Block, BatchElement, Batch, QueueOrigin } from '..'
 import { RollupInfo, Range, BatchSubmitter, BLOCK_OFFSET } from '.'
 
 export interface AutoFixBatchOptions {
@@ -602,41 +589,11 @@ export class TransactionBatchSubmitter extends BatchSubmitter {
           queueElementBlockNumber: queueElement.blockNumber,
         }
       )
-      // This implies that we've double played a deposit.
-      // We can correct this by instead submitting a dummy sequencer tx
-      const wallet = Wallet.createRandom()
-      const gasLimit = 8_000_000
-      const gasPrice = 0
-      const chainId = 10
-      const nonce = 0
-      const rawTx = await wallet.signTransaction({
-        gasLimit,
-        gasPrice,
-        chainId,
-        nonce,
-        to: '0x1111111111111111111111111111111111111111',
-        data: '0x1234',
-      })
-      // tx: [0nonce, 1gasprice, 2startgas, 3to, 4value, 5data, 6v, 7r, 8s]
-      const tx = ethers.utils.RLP.decode(rawTx)
-      const dummyTx: EIP155TxData = {
-        sig: {
-          v: tx[6],
-          r: tx[7],
-          s: tx[8],
-        },
-        gasLimit,
-        gasPrice,
-        nonce,
-        target: tx[3],
-        data: tx[5],
-        type: TxType.EIP155,
-      }
+      const dummyTx: string = '0x1234'
       return {
         stateRoot: queueElement.stateRoot,
         isSequencerTx: true,
-        sequencerTxType: TxType.EIP155,
-        txData: dummyTx,
+        rawTransaction: dummyTx,
         timestamp: queueElement.timestamp,
         blockNumber: queueElement.blockNumber,
       }
@@ -715,17 +672,7 @@ export class TransactionBatchSubmitter extends BatchSubmitter {
       if (!block.isSequencerTx) {
         continue
       }
-      let encoding: string
-      if (block.sequencerTxType === TxType.EIP155) {
-        encoding = ctcCoder.eip155TxData.encode(block.txData as EIP155TxData)
-      } else if (block.sequencerTxType === TxType.EthSign) {
-        encoding = ctcCoder.ethSignTxData.encode(block.txData as EthSignTxData)
-      } else {
-        throw new Error(
-          `Trying to build batch with unknown type ${block.sequencerTxType}`
-        )
-      }
-      transactions.push(encoding)
+      transactions.push(block.rawTransaction)
     }
 
     return {
@@ -742,67 +689,26 @@ export class TransactionBatchSubmitter extends BatchSubmitter {
     this.log.debug('Fetched L2 block', {
       block,
     })
-    const txType = block.transactions[0].txType
 
-    if (this._isSequencerTx(block)) {
-      if (txType === TxType.EIP155 || txType === TxType.EthSign) {
-        return this._getDefaultEcdsaTxBatchElement(block)
-      } else {
-        throw new Error('Unsupported Tx Type!')
-      }
-    } else {
-      return {
-        stateRoot: block.stateRoot,
-        isSequencerTx: false,
-        sequencerTxType: undefined,
-        txData: undefined,
-        timestamp: block.timestamp,
-        blockNumber: block.transactions[0].l1BlockNumber,
-      }
+    const batchElement = {
+      stateRoot: block.stateRoot,
+      timestamp: block.timestamp,
+      blockNumber: block.transactions[0].l1BlockNumber,
+      isSequencerTx: false,
+      rawTransaction: undefined,
     }
-  }
 
-  private async _getBlock(blockNumber: number): Promise<L2Block> {
-    const block = (await this.l2Provider.getBlockWithTransactions(
-      blockNumber
-    )) as L2Block
-    // Convert the tx type to a number
-    block.transactions[0].txType = txTypePlainText[block.transactions[0].txType]
-    block.transactions[0].queueOrigin =
-      queueOriginPlainText[block.transactions[0].queueOrigin]
-    if (!block.transactions[0].l1BlockNumber) {
-      this.log.error('Current block missing l1BlockNumber', {
-        blockNumber,
-        block,
-      })
+    if (this._isSequencerTx(block)) {
+      batchElement.isSequencerTx = true
+      batchElement.rawTransaction = block.transactions[0].rawTransaction
     }
 
-    return block
+    return batchElement
   }
 
-  private _getDefaultEcdsaTxBatchElement(block: L2Block): BatchElement {
-    const tx: TransactionResponse = block.transactions[0]
-    const txData: EIP155TxData = {
-      sig: {
-        v: tx.v - this.l2ChainId * 2 - 8 - 27,
-        r: tx.r,
-        s: tx.s,
-      },
-      gasLimit: BigNumber.from(tx.gasLimit).toNumber(),
-      gasPrice: BigNumber.from(tx.gasPrice).toNumber(),
-      nonce: tx.nonce,
-      target: tx.to ? tx.to : '00'.repeat(20),
-      data: tx.data,
-      type: block.transactions[0].txType,
-    }
-    return {
-      stateRoot: block.stateRoot,
-      isSequencerTx: true,
-      sequencerTxType: block.transactions[0].txType,
-      txData,
-      timestamp: block.timestamp,
-      blockNumber: block.transactions[0].l1BlockNumber,
-    }
+  private async _getBlock(blockNumber: number): Promise<L2Block> {
+    const p = this.l2Provider.getBlockWithTransactions(blockNumber)
+    return p as Promise<L2Block>
   }
 
   private _isSequencerTx(block: L2Block): boolean {
diff --git a/packages/batch-submitter/src/index.ts b/packages/batch-submitter/src/index.ts
index 57b48ce734982..e915fe036b086 100644
--- a/packages/batch-submitter/src/index.ts
+++ b/packages/batch-submitter/src/index.ts
@@ -1,3 +1,4 @@
 export * from './batch-submitter'
 export * from './transaction-chain-contract'
 export * from './types'
+export * from './utils'
diff --git a/packages/batch-submitter/src/types.ts b/packages/batch-submitter/src/types.ts
index f40bd9a5f09a3..1aea043612751 100644
--- a/packages/batch-submitter/src/types.ts
+++ b/packages/batch-submitter/src/types.ts
@@ -1,23 +1,12 @@
 /* External Imports */
 import {
   BlockWithTransactions,
-  Provider,
   TransactionResponse,
 } from '@ethersproject/abstract-provider'
 
-/* Internal Imports */
-import { EIP155TxData, TxType } from '@eth-optimism/core-utils'
-
 export enum QueueOrigin {
-  Sequencer = 0,
-  L1ToL2 = 1,
-}
-
-export const queueOriginPlainText = {
-  0: QueueOrigin.Sequencer,
-  1: QueueOrigin.L1ToL2,
-  sequencer: QueueOrigin.Sequencer,
-  l1ToL2: QueueOrigin.L1ToL2,
+  Sequencer = 'sequencer',
+  L1ToL2 = 'l1',
 }
 
 /**
@@ -27,8 +16,8 @@ export const queueOriginPlainText = {
 export interface L2Transaction extends TransactionResponse {
   l1BlockNumber: number
   l1TxOrigin: string
-  txType: number
-  queueOrigin: number
+  queueOrigin: string
+  rawTransaction: string
 }
 
 export interface L2Block extends BlockWithTransactions {
@@ -43,8 +32,7 @@ export interface L2Block extends BlockWithTransactions {
 export interface BatchElement {
   stateRoot: string
   isSequencerTx: boolean
-  sequencerTxType: undefined | TxType
-  txData: undefined | EIP155TxData
+  rawTransaction: undefined | string
   timestamp: number
   blockNumber: number
 }
diff --git a/packages/batch-submitter/test/batch-submitter/batch-submitter.spec.ts b/packages/batch-submitter/test/batch-submitter/batch-submitter.spec.ts
index 5af11a2f031dd..761307b867595 100644
--- a/packages/batch-submitter/test/batch-submitter/batch-submitter.spec.ts
+++ b/packages/batch-submitter/test/batch-submitter/batch-submitter.spec.ts
@@ -247,18 +247,9 @@ describe('BatchSubmitter', () => {
         const nextQueueElement = await getQueueElement(
           OVM_CanonicalTransactionChain
         )
-        const data = ctcCoder.eip155TxData.encode({
-          sig: DUMMY_SIG,
-          gasLimit: 0,
-          gasPrice: 0,
-          nonce: 0,
-          target: DUMMY_ADDRESS,
-          data: '0x',
-          type: TxType.EIP155,
-        })
         l2Provider.setL2BlockData(
           {
-            data,
+            rawTransaction: '0x1234',
             l1BlockNumber: nextQueueElement.blockNumber - 1,
             txType: TxType.EIP155,
             queueOrigin: QueueOrigin.Sequencer,
@@ -305,18 +296,9 @@ describe('BatchSubmitter', () => {
           OVM_CanonicalTransactionChain,
           2
         )
-        const data = ctcCoder.ethSignTxData.encode({
-          sig: DUMMY_SIG,
-          gasLimit: 0,
-          gasPrice: 0,
-          nonce: 0,
-          target: DUMMY_ADDRESS,
-          data: '0x',
-          type: TxType.EthSign,
-        })
         l2Provider.setL2BlockData(
           {
-            data,
+            rawTransaction: '0x1234',
             l1BlockNumber: nextQueueElement.blockNumber - 1,
             txType: TxType.EthSign,
             queueOrigin: QueueOrigin.Sequencer,
@@ -418,18 +400,9 @@ describe('BatchSubmitter', () => {
       const nextQueueElement = await getQueueElement(
         OVM_CanonicalTransactionChain
       )
-      const data = ctcCoder.eip155TxData.encode({
-        sig: DUMMY_SIG,
-        gasLimit: 0,
-        gasPrice: 0,
-        nonce: 0,
-        target: DUMMY_ADDRESS,
-        data: '0x',
-        type: TxType.EIP155,
-      })
       l2Provider.setL2BlockData(
         {
-          data,
+          rawTransaction: '0x1234',
           l1BlockNumber: nextQueueElement.blockNumber - 1,
           txType: TxType.EIP155,
           queueOrigin: QueueOrigin.Sequencer,
diff --git a/packages/batch-submitter/test/batch-submitter/mockchain-provider.ts b/packages/batch-submitter/test/batch-submitter/mockchain-provider.ts
index 62f3de3eb7bd9..e50315c46446f 100644
--- a/packages/batch-submitter/test/batch-submitter/mockchain-provider.ts
+++ b/packages/batch-submitter/test/batch-submitter/mockchain-provider.ts
@@ -1,5 +1,5 @@
 /* External Imports */
-import { providers } from 'ethers'
+import { providers, BigNumber } from 'ethers'
 import {
   BlockWithTransactions,
   TransactionResponse,
@@ -18,6 +18,7 @@ interface UnformattedL2Transaction extends TransactionResponse {
   l1MessageSender: string
   signatureHashType: string
   queueOrigin: string
+  rawTransaction: string
 }
 
 interface UnformattedL2Block extends BlockWithTransactions {
@@ -60,25 +61,32 @@ export class MockchainProvider extends providers.JsonRpcProvider {
   }
 
   public async send(endpoint: string, params: []): Promise<any> {
-    if (endpoint === 'eth_chainId') {
-      return this.chainId()
+    switch (endpoint) {
+      case 'eth_chainId':
+        return this.chainId()
+      case 'rollup_getInfo':
+        const info: RollupInfo = {
+          mode: 'sequencer',
+          syncing: false,
+          ethContext: {
+            timestamp: 0,
+            blockNumber: 0,
+          },
+          rollupContext: {
+            index: 0,
+            queueIndex: 0,
+          },
+        }
+        return info
+      case 'eth_getBlockByNumber':
+        if (params.length === 0) {
+          throw new Error(`Invalid params for ${endpoint}`)
+        }
+        const blockNumber = BigNumber.from((params as any)[0]).toNumber()
+        return this.mockBlocks[blockNumber]
+      default:
+        throw new Error('Unsupported endpoint!')
     }
-    if (endpoint === 'rollup_getInfo') {
-      const info: RollupInfo = {
-        mode: 'sequencer',
-        syncing: false,
-        ethContext: {
-          timestamp: 0,
-          blockNumber: 0,
-        },
-        rollupContext: {
-          index: 0,
-          queueIndex: 0,
-        },
-      }
-      return info
-    }
-    throw new Error('Unsupported endpoint!')
   }
 
   public setNumBlocksToReturn(numBlocks: number): void {
@@ -119,13 +127,12 @@ export class MockchainProvider extends providers.JsonRpcProvider {
       block.transactions[0].l1BlockNumber,
       10
     )
-    const queueOrigin: number = parseInt(block.transactions[0].queueOrigin, 10)
+    const queueOrigin: string = block.transactions[0].queueOrigin
     const l1TxOrigin: string = block.transactions[0].l1MessageSender
     const l2Transaction: L2Transaction = {
       ...block.transactions[0],
       // Rename the incorrectly named fields
       l1TxOrigin,
-      txType,
       queueOrigin,
       l1BlockNumber,
     }
@@ -209,8 +216,9 @@ const BLOCKS = JSON.parse(`
              "creates":"0xA193E42526F1FEA8C99AF609dcEabf30C1c29fAA",
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -261,8 +269,9 @@ const BLOCKS = JSON.parse(`
              "creates":null,
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -313,8 +322,9 @@ const BLOCKS = JSON.parse(`
              "creates":null,
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -365,8 +375,9 @@ const BLOCKS = JSON.parse(`
              "creates":"0x94BA4d5Ebb0e05A50e977FFbF6e1a1Ee3D89299c",
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -417,8 +428,9 @@ const BLOCKS = JSON.parse(`
              "creates":null,
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -469,8 +481,9 @@ const BLOCKS = JSON.parse(`
              "creates":null,
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -521,8 +534,9 @@ const BLOCKS = JSON.parse(`
              "creates":"0x956dA338C1518a7FB213042b70c60c021aeBd554",
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -573,8 +587,9 @@ const BLOCKS = JSON.parse(`
              "creates":null,
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -625,8 +640,9 @@ const BLOCKS = JSON.parse(`
              "creates":null,
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -677,8 +693,9 @@ const BLOCKS = JSON.parse(`
              "creates":"0x6454C9d69a4721feBA60e26A367bD4D56196Ee7c",
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -729,8 +746,9 @@ const BLOCKS = JSON.parse(`
              "creates":null,
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -781,8 +799,9 @@ const BLOCKS = JSON.parse(`
              "creates":null,
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -833,8 +852,9 @@ const BLOCKS = JSON.parse(`
              "creates":null,
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -885,8 +905,9 @@ const BLOCKS = JSON.parse(`
              "creates":null,
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
@@ -937,8 +958,9 @@ const BLOCKS = JSON.parse(`
              "creates":null,
              "l1BlockNumber":"1",
              "l1TxOrigin":"0x3333333333333333333333333333333333333333",
+             "rawTransaction":"0x420420",
              "signatureHashType":"0",
-             "queueOrigin":"0",
+             "queueOrigin":"sequencer",
              "chainId":31337
           }
        ]
diff --git a/packages/core-utils/src/l2context.ts b/packages/core-utils/src/l2context.ts
index 06f7853e368ea..0fe7f771b7ebb 100644
--- a/packages/core-utils/src/l2context.ts
+++ b/packages/core-utils/src/l2context.ts
@@ -33,6 +33,7 @@ export const injectL2Context = (l1Provider: providers.JsonRpcProvider) => {
       b.transactions[i].l1TxOrigin = block.transactions[i].l1TxOrigin
       b.transactions[i].txType = block.transactions[i].txType
       b.transactions[i].queueOrigin = block.transactions[i].queueOrigin
+      b.transactions[i].rawTransaction = block.transactions[i].rawTransaction
     }
     return b
   }