Non Volatile RAM Upgrade for SNES & SFC Cartridges : 4 Steps (with Pictures) - Instructables
SNES - RAM + battery backup - nesdev.org
I designed this flashcart with battery-backed RAM for my 6502-based game console : r/electronics
MRAM Replaces BBSRAM | Everspin
Reviving an ST M48Z35 battery backed RAM chip – Matt's Tech Pages
ACORN BBC MICRO MASTER 128 BATTERY BACKED RAM ROM EEPROM EXPANSION BOARD | eBay
Non volatile Ram - Scroller Parts
Allied Electronics 499-2840A Battery back RAM (512K)
HP 309521-001 128MB 3.6v BBWC Battery-Memory Cache Module - ServerSupply.com
82214A - Hewlett-packard (HP) - 32KB Battery Backed RAM Card for 48SX and 48GX Calculators | Impact Computers
Amazon.com: PLC Battery Replaces Energy+ Allen Bradley 1763-BA Micro 1100 Used For Computer Back Up Technology Server Power UPS RAM Parameter Random Access CPU Information PRAM System Emergency : Health & Household
Can I Connect a Battery to a RAM Device to Prevent Data Loss During a Power Outage? - Avalanche Technology
computers - Can we not simply connect a battery to a RAM to prevent data loss during power cuts? - Electrical Engineering Stack Exchange
N64 Memory: Battery Backed SRAM - rothw.com
A Comparison between Battery Backed NVSRAMs and NOVRAMS | Analog Devices