About Estry — Professional Replacement Batteries

Replacement batteries for professional & medical equipment

Estry supplies drop-in replacement battery packs for infusion pumps, defibrillators, patient monitors, power tools, scanners, two-way radios and other professional devices — 8,700+ models cross-referenced against OEM part numbers, so you order by what the label says and we match the rest.

8,700+replacement models
24hquote turnaround
48hsample dispatch
3warehouses CN / HK / US
Cross-reference matching

Send models, OEM part numbers, device names — even photos of the label. Our engineers confirm compatibility, connector and fit before quoting.

Compliance documents

UN 38.3 test summaries and MSDS/SDS available for every shipment. Documents are issued with your order — no extra requests needed.

Volume pricing

Automatic tiered discounts at checkout — 10+ pcs −5%, 100+ pcs −10%, mix & match any models. Deeper pricing for recurring B2B volumes via quote.

Fast logistics

Free shipping to the United States on every order. Samples dispatch in 48 hours; bulk orders ship with PI and a full compliance pack.

Need a model you can't find? Our engineers cross-reference it for you — reply within 24 hours.

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