{"product_id":"vdo-standard-ignition-replacement-battery-74v-2100mah-li-polymer","title":"VDO STANDARD IGNITION 7.4V Replacement Battery 105070 2S1P","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVDO Standard Ignition — 7.4V Li-Polymer Replacement Battery (105070 2S1P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 2100mAh Li-Polymer pack replaces the original battery in the VDO Standard Ignition series survey and diagnostic instrument. It matches the OEM part number 105070 2S1P and fits the same physical envelope at 68 × 50 × 10.30mm. Voltage and cell configuration are identical to the factory specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStandard Ignition series fit:\u003c\/strong\u003e\n    These instruments share a common 2S1P cell layout and connector pinout. The BMS handshake expects a specific charge-cycle profile from the 7.4V rail, and this pack meets that voltage window at both full charge and cutoff thresholds.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled the pack through charge, full load, and BMS cutoff events. The protection circuit held cutoff voltage correctly and resumed normal charge acceptance without requiring a manual reset.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use calibration step:\u003c\/strong\u003e\n    After installing, run a full calibration cycle through the instrument menu before field deployment. The instrument maps battery state during calibration, and skipping this step causes premature low-battery warnings on your first measurement session.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS lockout after the VDO Standard Ignition sat unused in a carry case for months\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells in 2S1P configuration self-discharge slowly over months. If the pack drops below approximately 2.5V per cell, the BMS trips a deep-discharge lockout and blocks normal charge current. The charger LED may show green or no activity even though the pack is not charged. To recover, apply a trickle charge at low current for 15–30 minutes until cell voltage climbs above 3.0V per cell, then resume normal charging.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eVDO Standard Ignition shuts down mid-measurement with no low-battery warning\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when a probe or sensor module initialises and draws a brief current spike that exceeds the BMS overcurrent threshold. The protection circuit cuts power immediately, and because the event is fast, the instrument has no time to log a low-voltage warning before shutdown. It is not a cell capacity problem — it is a trip event. Power the instrument back on, allow the probe to complete its initialisation sequence before starting logging, and check that the probe connector is fully seated to reduce contact resistance at startup.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360452345946,"sku":"BWCS-VDT570SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360452378714,"sku":"BWCS-VDT570SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360452411482,"sku":"BWCS-VDT570SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-VDT570SL-1.webp?v=1778614761","url":"https:\/\/batteryweb.com\/products\/vdo-standard-ignition-replacement-battery-74v-2100mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}